As a learner, select the language that you are most comfortable with and enroll to start learning. On ADEL, when two or more courses cover the same content, they are considered as equivalent. This applies to the courses when multiple translated versions are available.
When you complete one of these courses, all the equivalent courses are marked as “completed” as well. That is, when you have completed a course in one language (e.g., English), all of its equivalent courses will be marked complete as well. If you enroll in other languages of the same course, your record will be automatically marked as “completed”.
For example: an athlete completed the course “ADEL for Tokyo 2021 Olympics” in English. She gets a passing score in the quiz and receives a certificate. If she enrolls in the French version of the same course, her status will automatically marked as “completed” without completing the modules in French.
Under the My Education Program section on your learning dashboard, you will also notice the course is marked as completed.
Under My Activities/Courses tab, you will notice that the equivalent courses status is completed as well. 
There is no requirement for you to complete the same course again in a different language, but it is up to you to review in the language you are most comfortable with.
Note: In case of any confusion about which course to complete, please check with your national anti-doping organization (NADO) or international federation (IF) as needed.