You can translate a script from the Project view. This can come in handy when you want to create the same video for different audiences.
Go to the project view.
Click on the three dots on the script you want to translate.
Click on Translate script.
Choose what language you want to translate the script into.
Click on Translate.
A new script is created (with a language code added to the name of the script)!
You can translate your video to a lot of languages, see the list here.