about subtitles download and embed them into the video

[thisisjin]

I tried to read all the issues, but the problem was not solved, so I wrote this issue.
Here are my questions:

1. According to the closed issue, I created a configuration file named "Subtitles", modified the content of the configuration file, and enabled "--write-sub --sub-langs zh-Hans" and "--write-sub --sub-lang zh" successively, but the final situation of both is that there are no subtitles after the video is downloaded.
   I want to download the automatically translated language subtitles and embed them into the video.

Could you please give me some advice? The GUI you created is the most convenient one I have ever used. Thank you very much