To make a card from the currently visible subtitle line, press Ctrl+n.
To make a card from two or more subtitle lines:
- Press a to open advanced menu.
- Press c to start interactive selection.
- Seek to the previous/next subtitle with Shift+h and Shift+l.
- Press n to create a new card.
After the card is created, you can find it by typing added:1
in the Anki Browser.
The card doesn't contain dictionary definitions.
You need to add them yourself afterward, using software like GoldenDict, Qolibri, etc.