I could see the voice actor learning a sentence or two but on occasion the bit goes on for a couple minutes. I feel like with a cartoon it wouldn’t be that hard to find a stand in who sounds close enough or use whoever does the dubbing for that language.
I once asked Chris Parnell if he knew spanish since he speaks it a lot in Archer. He said they give them phonetic lines and he doesn’t know any languages besides english.
Wow, I really thought he did because of Archer! Now I’m curious about Jon.
I totally thought so too.