I just tried this for my native tongue, Dutch, and I am getting stuff wrong because it doesn't have the correct translation for it.

Stuff like "the friend" is translated to "de vriendin". Or "near the sea" can't be translated as "bij de zee" but has to be translated to "vlakbij de zee". A lot of them are context dependent as well, and don't make sense the way they are presented.

"Forward" is one I kept running into, it can be translated in two different ways depending on the context, "naar voren" or "vooruit" (BTW, define: vooruit in Google doesn't give you anything, search in de Dikke Van Dale a Dutch Dictionary). It made it immensely frustrating to go through Level 1 and I just gave up after a while.