Electrical system design tutor工作

筛选

我最近的搜索
筛选项:
预算
类型
技能
语言
    工作状态
    2,000 electrical system design tutor 份搜到的工作,货币单位为 USD
    Portugal Saft system 已经结束 left

    T29. Simule a integração de 2 documentos manuais de acordo com o ponto 2.4 do Despacho n.º 8632/2014 de 03 de julho do Diretor Geral da Autoridade Tributária e Aduaneira sendo que o 1º documento pertence à série F com o nº 23 do dia 14-01-2022 e o 2º pertence à série D com o nº 3 do dia 12-01-2022 e respetivo PDF. (Note que, de acordo com o ponto 2.4.2, deve ser criado um novo documento do mesmo tipo que recolha todos os elementos do documento manual emitido, significando que todos os elementos são de introdução livre, por exemplo: denominação usual, quantidade, preço, valor do imposto, total de imposto e do documento, etc.); T30. Simule a integraç&ati...

    $28 / hr (Avg Bid)
    $28 / hr 平均报价
    4 个竞标

    我的网站是使用WordPress,但遇到了状况 我使用了一个LMS的插件 这个: 但我遇到的情况是,我使用了一段时间,我在后台突然看不到这个LMS的仪表盘,如果我透过网址进入编辑,他还会显示「很抱歉,目前的登入身分没有存取这个页面的权限。」 但前台运作是正常的 我之前合作过一个工程师,协助排除过一些网站问题,我不知道是不是他搞坏了什么? 题外话,我希望沟通是透过中文,因为我英文不好

    $42 (Avg Bid)
    $42 平均报价
    4 个竞标

    我需要您来为我开发一些软件。该软件需要开发。

    $2250 (Avg Bid)
    $2250 平均报价
    2 个竞标

    magento mysql查询量很大,cpu负载超过 1000%

    $68 (Avg Bid)
    $68 平均报价
    6 个竞标

    We run an e-commerce website, and now we want to find a big cow with experience in information security to do system security work for us. Need to have experience in website penetration testing. The freelancer should be an information security practitioner 我们经营着一个电商网站,现在我们想寻找一名在信息安全方面有经验的大牛为我们做系统安全工作。需要有网站渗透测试经验。

    $52 / hr (Avg Bid)
    $52 / hr 平均报价
    11 个竞标

    1.在access选项卡下增加购买栏,后台可以输入金额,前台用户访问页面时支付相应金额以后可以访问内容; 2.用户可以自己购买用户组,用户支付一定的金额,可以在一段时间内成为某一个用户组成员 3.支付方式包含支付宝和微信支付(扫码、链接等都需要支持) 4.详细说明请查看附加文件

    $20 / hr (Avg Bid)
    $20 / hr 平均报价
    3 个竞标

    Basic knowledge about startup business in China, will be preferred. 最好对手机应用有兴趣和有关中国启动行业有基本知识。

    $6 / hr (Avg Bid)
    $6 / hr 平均报价
    14 个竞标

    想要设计一个云平台的酒店管理系统的界面,主要用户为中小酒店业主,希望用户界面清爽,简介,方便易用。

    $258 (Avg Bid)
    $258 平均报价
    15 个竞标

    一个行政系统内部的教学管理系统,方便受培训的教员和学员进行线上沟通,作业审批,互动等功能。目的是提高交互性和创新性。价格不封顶。

    $26 / hr (Avg Bid)
    $26 / hr 平均报价
    6 个竞标

    我们需要一位经验程式编写员编写软件破译ireserve-hk(sms registration code system) 1.于上午8点ireserve开店前(UTC+0800)提取PH code(text code) +/or 2.提取PH code后即时破译产出registration code +/or 跳过sms验证页面 请于1-3天内完成 , 请电邮给我进一步讨论

    $305 (Avg Bid)
    $305 平均报价
    1 个竞标

    我需要一名经验程式员编写软件破译irserve-hk(sms registration code system) 预订网站: 要求: 1.于上午8时开店前提取PH code 及/或 2.于上午8时开店前提取PH code 及 获取sms验证码 及/或 3.提取PH code后即时破译计算出sms验证码 及/或 4.破译跳过sms验证页 需于1-3天内完成

    $587 (Avg Bid)
    $587 平均报价
    6 个竞标

    需要在北京附近的廊坊,作一个认证与授权系统的安装、配置与维护。解决一些基本的技术问题。 时间: 3-6个月; 需要熟悉Linux,了解Web与java开发;网络的基本配置与维护;需要解决问题的能力强,沟通能力强;

    $14999 (Avg Bid)
    $14999 平均报价
    2 个竞标

    Need to build a program ( can be a standalone program running on a PC, or a web based program for a youth centre. Major features required is membership system, course registration system, billing and invoicing system, month-end summary. ( Needs to be in Chinese / Traditional preferred )

    $1505 (Avg Bid)
    $1505 平均报价
    11 个竞标

    ...到英语家教,要求中英文对照,我们现在有一个网站,可以参考 新制作的网站要求全面升级,改变运营模式,变为以外国家教付费模式,外教在我的平台发布自己的信息,后台可以更新图片,文章,上课时间,使用的教材,学生评价,等。 中国学生能够方便,免费的得到外教的联系方式,联系外教。 I need to upgrade my current web site this would be a bilingual site Chinese and English, a platform for native English tutor easily find Chinese students in all cities China. Tutor will pay for us, they can start an account and biuld a online class on our site, Chinese students can easily find native English tutor on our site. I have no idea about the budget, so ignore the price below, feel free to offer, thanks

    $1045 (Avg Bid)
    $1045 平均报价
    10 个竞标

    参考网站: & 具体要求: 我已经拥有 FocalPrice 网站的 API token 及 API 档案。 目前需要把API系统结合我的购物网站 ()。 我的购物网站是采用 Zen Cart 建架的。 重点:在使用API 系统调用FocalPrice产品时,在Zen Cart后台可以设定卖价。 例如在FocalPrice的售价是USD10,我在购物网站后台设定110%,则售价就会自动变成USD11。 有能力设计者,请直接电邮给我,并说明您的标价。 谢谢。 LS KU 请发邮件到:liaoyuanci后面是@加上hotmail点com

    $21 (Avg Bid)
    $21 平均报价
    1 个竞标

    聘请Online Marketing 网络销售人员 Promote & Sell Löwe QMS-5500RF Queue Management System 排队按号码系统 Salary: Direct Commission( USD 30.00 ~ USD 50.00 per sale ) & Target Bonus Contact: Charles Lai 016 711 5203 WhatsApp: 016 711 5203 Product:

    $30 (Avg Bid)
    $30 平均报价
    1 个竞标

    A media company based in Shenzhen China, need a creative designer for a small project. Project Details: Create a 1 second continuous animation for android system, see attached files for samples. 在中国深圳的一间公司,找寻有才能的设计师帮忙设计一秒的连续性动画。 这是将会用到安卓系统上的动画,详情请参考附件的图档跟影片,若有兴趣请联系。

    $311 (Avg Bid)
    $311 平均报价
    29 个竞标

    您好,我的QQ 2597254962,请联系。谢谢

    $127 - $127
    $127 - $127
    0 个竞标

    ...Python to help me build a robust CRM system. The project calls for a quick turnaround - I need it to be completed ASAP. Key Features: - Sales Pipeline Management: The system should help me track my sales process from lead generation to conversion. - Customer Interaction Tracking: I want to record all interactions with my customers, including emails, calls, and meetings. - Integrated Email Marketing: The CRM should have seamless integration with my email marketing tools so I can easily communicate with my customers. - Scheduling: I need the system to have scheduling capabilities to help me manage my time effectively. Primary Goals: - Improve Customer Satisfaction: The CRM should help me provide better service to my clients. - Increase Sales: The system shoul...

    $120 (Avg Bid)
    $120 平均报价
    25 个竞标

    As part of my urgent project, I'm looking for an AI developer proficient in automatic scoring and evaluation with a strong understanding of the IELTS exam format. The aim is to build a comprehensive system capable of: - Precisely grading the speaking and writing sections of the IELTS exam - Identifying areas of improvement for each test-taker - Providing detailed individual feedback - Including evaluations for reading and listening sections For success in this project, familiarity with Natural Language Processing (NLP), Machine Learning, language testing, and proficiency in various AI programming languages is essential. Previous experience in educational AI software development such as automated grading systems will be highly regarded. Required Skills: - AI development - ...

    $406 (Avg Bid)
    $406 平均报价
    3 个竞标
    Trophy icon Vehicle control system 24-05-104 3 天 left

    ...technology pertains to a vehicle control system designed to enable specific operations on a vehicle. Traditionally, there has been a smart system utilizing electronically authenticated keys through wireless communication with the vehicle. However, a new method using sound authentication with a device worn on the user's ear has been proposed. While this device offers a novel way to authenticate with the vehicle, using standard communication protocols allows authentication from a distance, which could lead to risks of unauthorized access by third parties. Therefore, the goal of this technology is to provide an improved vehicle control system that reduces the risk of such unauthorized manipulations.【2 Technology Description】 This technology involves a system...

    $50 (Avg Bid)
    加保
    $50
    0 项参赛作品

    I need an access control system that's structured based on the roles my users have, similar to the old system. Key Requirements: - I need the system to manage user permissions on an individual basis. This means that each user should have unique permission settings. - The system doesn't need to have options for temporary or time-based access permissions. Ideal Skills and Experience: - Strong background in access control systems. - Experience implementing role-based access control is essential. - Proficiency in customizing user permissions on an individual basis in a system.

    $34 (Avg Bid)
    $34 平均报价
    22 个竞标

    I'm a beginner looking to learn these software programs for Civil engineering design, Drafting and modeling, and 3D visualization. I'm looking for an experienced tutor who can provide me with comprehensive training in Civil 3D, Rivett, and AutoCAD. Key Requirements: - Proficiency in Civil engineering design, Drafting and modeling, and 3D visualization. - Ability to teach at a beginner's level. - Strong communication skills and ability to explain complex concepts in an understandable manner. - Prior tutoring experience would be a plus. The ideal candidate should be patient and have a passion for teaching. I'm looking for an interactive learning experience that will help me build a solid foundation in these software programs.

    $77 (Avg Bid)
    $77 平均报价
    3 个竞标

    I'm in need of a proficient individual who can help me set up my NAS System running openSUSE, including the configuration of a Docker system. I already have the hardware for the NAS system, so the primary focus would be on the software setup. Key Requirements: - Installation and configuration of a NAS System on openSUSE - Setting up a Docker system on the NAS - Configuring the NAS to run Web applications, Database services and a Media server - Ensuring the system is capable of supporting connectivity for less than 10 devices Ideal Candidate: - Proficient in setting up NAS Systems on openSUSE - Experienced in Docker system setup and configuration - Knowledgeable in configuring NAS Systems to support various applications - Skilled in en...

    $139 (Avg Bid)
    $139 平均报价
    7 个竞标

    I'm seeking an experienced professional to set up a karaoke system with a main focus on installing a professional-grade audio mixer. An existing venue has been arranged for the setup. The ideal candidate will have a deep understanding of professional audio equipment and bring expertise in acoustic setup to ensure optimal sound quality in the space. Familiarity with karaoke systems and proven ability to work effectively within the constraints of the venue is required. A site visit to see the available equipments is preferred before the installation day.

    $52 (Avg Bid)
    $52 平均报价
    5 个竞标

    I'm in need of a tech-savvy sales professional to help me grow the customer base for my Electrician services. My primary offering to clients is Wiring and Installations, although I'm versatile enough to cater to various electrical needs. Key Job Responsibilities: - Promoting my Electrician services - Securing new clients in need of Wiring and Installations This role is more suitable for individuals who have: - Excellent sales skills - Knowledge or experience in Electrician services - Understanding of lead generation best practices in the service sector This is a commission-based role with an attractive payout structure. Let's connect if you are excited about this opportunity.

    $6522 (Avg Bid)
    $6522 平均报价
    7 个竞标

    I'm looking for an experienced NEET Biology tutor to create a series of recorded video lectures focusing on the complete NEET Biology syllabus. Key Responsibilities: - Create a series of recorded video lectures for Intermediate level students - Cover all areas of NEET Biology syllabus - Ensure that the lectures are engaging, informative and easy to comprehend Ideal Candidate: - Strong background in NEET Biology - Previous experience in teaching Intermediate level is preferred - Proficiency in creating high-quality educational content - Good communication and presentation skills The mode of teaching for this project is strictly recorded video lectures.

    $97 (Avg Bid)
    $97 平均报价
    3 个竞标

    I am facing an issue with incorrect message structures within my C# windows service application. - Problem: At present, our application is producing improperly structured messages - an anomaly that we are keen on rectifying. - Solution: I am in search of a proficient C# developer with significant experience in handling message logging, particularly with event loggers. You will be required to add the event logger and figure out what is causing our issues. - Timeline: The task is quite urgent, so I need someone who can begin immediately and deliver as soon as possible – I'm counting on your efficiency. Skills and experience: - Advanced knowledge of C#, especially in creating and troubleshooting windows service applications - Experience with event loggers, from implementation...

    $147 (Avg Bid)
    $147 平均报价
    31 个竞标

    I'm in need of a proficient Simulink designer to assist me with a PID Control System Design project. The focus is on Position Control System. The project requires the following: - Expertise in Simulink and control system design - Knowledge of PID control development and its application in Position Control System and Car suspension Skills & Requirements: - Proficiency in Matlab and Simulink - Advanced knowledge in Control System Design - Prior experience with Position Control Systems and Car suspension - Extensive experience with PID control and electrical actuator Your task would be: - Design a PID control for a position control system - Implement this design in Simulink - Test and refine the...

    $137 (Avg Bid)
    $137 平均报价
    12 个竞标

    ...tech-savvy professional to establish an automated system leveraging ChatGPT and Make Automation. The aim is to: - Automatically extract specific information from a variety of documents including Word, PDF files, Excel Spreadsheets, and Scanned documents - Thoroughly analyze extracted content including text, tables, charts, and images for compliance and precision - Automatically generate comprehensive reports based on extracted information for easy reference For this task, proficiencies in AI, Machine Learning, ChatGPT, and automation are necessary. Likewise, experience in OCR technology for processing scanned documents will be valuable. Not only should the candidate be detail-oriented - they should also be adept at debugging and ensuring the system seamlessly integrates...

    $1090 (Avg Bid)
    保密协议
    $1090 平均报价
    47 个竞标

    I need a comprehensive web-based content management system (CMS) which allows users to upload multimedia content. Key requirements include: - A secure, user-friendly interface for uploading and managing multimedia content (videos/photos). - Role-based access control for different users within the organization. - Automated content moderation and filtering to maintain quality standards. - An intuitive search and tagging system for efficient content retrieval. - Scalable architecture to accommodate a growing volume of content and users. Ideal Skills: - Proficiency in web development and CMS solutions. - Experience in designing and implementing multimedia content systems. - Strong understanding of user experience (UX) design principles. - Knowledge of security best pract...

    $25 / hr (Avg Bid)
    $25 / hr 平均报价
    35 个竞标

    ...with Divi. I'm looking to create an online appointment booking system for an eye clinic. I need this system to have a range of features that will make it more convenient for our patients and staff. Key Features: - Online Payment: The system should support online payment through Stripe. This will allow patients to pay for their appointments in advance. - Swedish Payment Provider: Integration with the Swedish payment provider Swish is important, as many of our customers prefer to pay using this method. - Video Conferencing: The system should enable the setup of online meetings. These meetings should be conducted via video conferencing. This feature will be useful for remote consultations and follow-ups. - Calendar Booking: The system should have a...

    $682 (Avg Bid)
    $682 平均报价
    165 个竞标

    have anyone can help me to install the Laravel system which buy from themeforest, thanks i will provide the domain and also the login of the hosting, thanks

    $32 (Avg Bid)
    $32 平均报价
    44 个竞标

    I need a Student Information Management System developed with SharePoint and PowerApps. This will be a comprehensive tool for tracking attendance, storing documents, and managing information from contact details to medical records. Key components should include: **Attendance Tracking** - The system should enable manual entry by teachers. **Student Profiles** - Each student should have an individual profile displaying personal details, contact information and medical details. - Student details and parent details will be collected using Office 365 Forms and the replies should write directly into the student management system. **Document Storage** - A document storage section is required for maintaining relevant records and resources. Including student documents like...

    $632 (Avg Bid)
    $632 平均报价
    21 个竞标

    ...looking for a developer who can create a cashier system specifically for my coworking space business with a coffee bar. The system should be able to handle cash transactions and support cashier functions efficiently. What i expect from the system : - Expenses and income with easily generated reports - Stock management (track coffee and material usage) using raw materials and compound materails Ex. I add 100 gram of espresso and 1 liter of milk to stock When i sell 4 Late (20 espresso 200 milk) I will have left 20 espresso and 200 milk in stock - in my busieness the payement is only after you check-out so everymember should have his own profile with his payments and reciepts - when you check in you have to tell the staff to check you-in so the system start...

    $490 (Avg Bid)
    $490 平均报价
    56 个竞标

    I'm seeking an expert Python Django developer to work on an ERP system for a lubricant oil manufacturing business. The main aim is to improve efficiency through exquisite control and management of different sectors. Key Features: - Inventory management - Sales tracking - Production planning - Finance handling - Logistics User Access: - The system must provide different access control for each department, allowing for optimal rights distribution and responsive control. The ideal freelancer will have proven experience in Python Django and a keen understanding of ERP systems in the manufacturing sector. Expertise in sector-specific challenges such as inventory management, sales tracking, and production planning is highly desirable.

    $1196 (Avg Bid)
    $1196 平均报价
    81 个竞标

    I'm in need of a skilled CRM Developer to create a custom CRM system with a variety of functionalities and stringent data security measures. Key Functionalities Needed: - Contact Management: The CRM should be able to store and manage client information, including their contact details. - Sales Pipeline Tracking: It should track and monitor the stages of our sales process, helping us identify areas for improvement and potential bottlenecks. - Customer Support Ticketing: The system should provide a platform for our customer support team to manage and resolve client issues efficiently. - Job Sheet Tracking: I also require functionality to track repair/service jobs for various items like phones, PCs, cars, bikes, ACs, etc. Platform and Device Support: - The CRM should be a...

    $692 (Avg Bid)
    $692 平均报价
    55 个竞标

    I'm in China now, and i can work as Online Chinese tutor or Android Developer, right now i work for a Canada Company as a translator, but these are part time jobs, and i want you to find job for me, and you can get 10% of the salary i get if you find the job for me. I can give you my resume

    $19 / hr (Avg Bid)
    $19 / hr 平均报价
    8 个竞标

    I'm seeking an experienced developer to create a minimum viable product (MVP) of a rent payment system with a reward component. The project involves building a user app, a landlord app, and an admin portal. Specifically, the user app should: - allow tenants to make rent payments through the app - provide a reward system for timely payments The landlord app should include: - functionality for managing rent payments - tools for monitoring the reward system The admin portal must have: - user management features - landlord management capabilities - transaction tracking functionality I'm looking for a developer who is not only skilled in app development, but also understands the dynamics of rent payment systems and reward programs. Experience with both front-...

    $1378 (Avg Bid)
    $1378 平均报价
    60 个竞标

    I am seeking a skilled software developer to create a rental system CRM application with specific functionalities. Key Features Required: - Customer Management: The application should be capable of managing customer details, their rental history, and other related information. - Inventory Tracking: An efficient inventory tracking system should be in place to monitor the available and rented items in real-time. - Rental Scheduling: The ability to schedule rentals, track them, and send reminders to customers is crucial for this project. Platform Compatibility: The software should be compatible with various platforms including Windows, MacOS, iOS, and Android. Essential Functionalities: - User Authentication: The system should validate the users based on their login c...

    $4 / hr (Avg Bid)
    $4 / hr 平均报价
    25 个竞标

    ...defense project of an IT software system to support their engineering and aftersales processes. Here's what is needed: - A keen understanding of user needs and expectations to meticulously improve engineering data and consumption downstream. This expectations involve tailoring to both aesthetic and functionality aspects for the customer. Ideal Skills and Experience: - Proven background in system design with a strong portfolio showcasing previous works. -Teamcenter and engineering data and Database solutions - Experience in user testing, user interface design, and usability testing. - Strong knowledge of UI design principles and techniques. - Proficiency in design and prototyping tools. I need a professional who can bring significant im...

    $35 / hr (Avg Bid)
    $35 / hr 平均报价
    7 个竞标

    Dear Mr. Mohsin, Task: Draw the ELV (Electrical, Low Voltage) shop drawing for the hypermarket project as per the architect's CAD file and the comments we have discussed previously. Project Details: The hypermarket consists of 2 floors: Ground floor: Hypermarket & offices First floor: Store The ELV shop drawing should cover the following systems: - CCTV - Network (Data & Phone) - Sound system (Announcement system with multi-zones) - Door Access - Wi-Fi APs - Server Room

    $200 (Avg Bid)
    $200 平均报价
    1 个竞标

    I'm looking for a freelancer with experience in setting up and customizin...looking for a freelancer with experience in setting up and customizing SafetyCulture auditing system. Key Requirements: - Inclusion of OHS, Fire, and Equipment Safety aspects - Setup for 1-10 users - No integration with other systems needed Ideal Candidate: - Proficient in SafetyCulture auditing system - Experience with safety aspects like OHS, Fire Safety, and Equipment Safety - Ability to customize for a small user group - strong communication skills for clear understanding of needs and providing assistance. We will be working with SafetyCulture to be able to provide assistance in the setup, and support. I will also be providing a specification document with all requirements t...

    $603 (Avg Bid)
    $603 平均报价
    14 个竞标

    Setup of accounting software, import and clear data to have it ready to work.

    $125 (Avg Bid)
    $125 平均报价
    1 个竞标

    I'm in need of a tailored user role-based system that centers around form filling and payment processing. Here's a breakdown of the key functionalities: - User Roles: The system will have three core user roles - Admin, Doctor, and Subadmin. The Admin will have the highest level of access and control, managing user roles, form submissions, and payment links. The Doctor will primarily be responsible for filling out forms and creating payment links. The Subadmin will receive completed forms and process payments. - Admin Capabilities: The Admin user should be empowered to manage user roles and permissions, view and edit all forms and payment links, and generate reports. This will be crucial for maintaining the system and monitoring its performance. - Doctor Re...

    $131 (Avg Bid)
    $131 平均报价
    23 个竞标

    I'm looking for an experienced Unity Developer who can help me create a fully animated character integrated with ChatGPT. This character's primary goal will be to deliver educational content to Windows users...for an experienced Unity Developer who can help me create a fully animated character integrated with ChatGPT. This character's primary goal will be to deliver educational content to Windows users. Key Requirements: - The character should be fully animated and engaging, with high-quality visual design and smooth motion. - It should be able to read the chatGPT response - Ensure smooth and realistic animations and lip-syncing for the meta-human during interactions. - An example role is meta human tutor You need to provide the unity project files and create...

    $18 / hr (Avg Bid)
    $18 / hr 平均报价
    39 个竞标

    I'm looking for a professional Flask and Python developer to help me implement a user management system for my website. The user management system should have Social Media login integration. Additionally, I would like the selected developer to set up a payment gateway and a MySQL database. Ideal Skills: - Proficient in Flask and Python - Experience in implementing user management systems with social media login integration - Proficient in setting up payment gateways - Proficient in working with MySQL databases

    $202 (Avg Bid)
    $202 平均报价
    59 个竞标

    I am looking for a professional web developer to create a sleek and user-friendly online booking system for my massage therapy center. Key Features: - Online Appointment Booking: The website should offer an easy and intuitive way for clients to book their massage therapy appointments online. - No Customer Login Required: I'd prefer the booking to be streamlined and hassle-free, with no mandatory customer login. Ideal Skills and Experience: - Previous experience in creating similar online booking systems is a huge plus. - Proficiency in web development, especially in creating functional and responsive websites. - Understanding of user experience and user interface design to ensure the booking process is seamless for clients.

    $58 (Avg Bid)
    $58 平均报价
    12 个竞标

    I need an efficient automation system coded for Clash of Clans. Here's the main functionality I need: - It should automate requesting troops every 10 minutes, 24/7 - Capability to handle multiple accounts simultaneously Speed matters a lot for this project. I require this system to be up and running as soon as possible. Ideal Skills: - Experience in Game Automation - Knowledge of Clash of Clans gaming structure - Proficiency in automation coding If you have the aforementioned skills, please place your informed bid. I look forward to working with a diligent freelancer on this quick turnaround project.

    $7 - $7
    $7 - $7
    0 个竞标

    I'm seeking an experienced drafter to create detailed electrical wiring diagrams for my residential project. The diagrams should include; - Circuit layout - Wire color codes - Component specifications There are no specific electrical codes or standards to be followed in this project. A deep understanding of generic electrical drafting standards is essential. Previous experience in residential electrical drafting will be highly advantageous. This project requires the use of computer-aided design software, with proficiency in AutoCAD or similar software as a desirable skill.

    $47 (Avg Bid)
    $47 平均报价
    12 个竞标