@Hind.Salah to translate tasks with TWB, you need to use our CAT tool, Kató TM. These links will help you learn how to use Kató TM: video tutorial, FAQs, Do’s and Don’ts.
When you’ve complete the task, follow these instructions to submit the task 
If you haven’t already done so, have a look at our welcome pack for more information on getting started with us 