You should see the flash-card screen roll down from the top right corner, stay for a bit, then roll back up.

应该可以看到flash-card屏幕从右上角滚下，停留一会儿，然后又向上滚回。

youdao

You should see the flash-card screen roll down from the top right corner, stay for a bit, then roll back up.

应该可以看到flash-card屏幕从右上角滚下，停留一会儿，然后又向上滚回。

youdao