Hey MiaoM,
Sorry we didn’t make this clear, but the way to add new words to your REVIEW queue is to go into LEARN mode within a deck. When you click GOT IT, or SKIP, it will add to the queue. If you want to add lots of words to the REVIEW queue, just hit SKIP.
We made a video about some of the new changes here (for the Chinese app), but the UI is almost the same.
