[Register and select a course] Welcome to "Let's translate Coursera." In this video, we will show you how to use all the features of our platform's interface to help you translate Coursera as easily and as conveniently as possible. You can log into the system using your email address or an existing account on Facebook or Google+. You can join the translation of any course you like. For instance, why not choose this course on "Creating images in Hollywood"? You don't have to translate all parts of a course one by one. Just click on any lecture to open the editor, and start working. [Editor interface] The editor interface consists of three main units: the video, the translation area, and the CAT-panel. You can play the video lecture with original subtitles in the editor. You can select a specific phrase and the system will show you the corresponding segment for translation. [CAT-panel and pasting MT results] The CAT-panel allows you to use machine translation. Choose the most appropriate option and press the Control key plus option number to instantly paste the result in the translation area. [Translation input] Each original segment comes with a Play button. Click it to see the corresponding portion of the lecture. You can translate it yourself, or post / edit a suggested machine translation to simplify and speed up the process. [Voting] A translated segment can be finalized, so that other users can see it and vote for it, increasing your rating. Apart from good translations, your rating also grows when you vote for the translations of other users. That's all you need to know to use our platform. [Happy translating!]