"They are not independent."
Translation:De är inte självständiga.
Yeah, this lesson contains much more new words - more than 60.. I have my own Duolingo dictionary and I always note the new words in this and when I have some freetime, I just check them. More difficult words are even highlighted. And if I'm struggling with a lesson and I'm still around lvl2, I use the practice "session" instead of going ahead with the lesson because in the beginning (lvl 1-2), there are more "Mark the correct meaning" tasks, they are easier and help to realize and note the different new words. I hope it helps you, it works for me :)