How do I translate a YouTube video with closed caption?
Can I translate on YouTube? Translate titles and descriptions
From the left menu, select Subtitles. Select a video. If you haven’t selected the language for a video, you’ll be asked to choose the language and Confirm. Select Add language and select the language that you’d like to translate to.
Can I change caption language on YouTube?
How do I translate a YouTube video without CC and no captions?