let's learn some english non words, huh, non words or interjections are sounds used to communicate, but they are not words oh, oh usually means i understand or i'm surprised oh oh huh means, i don't understand huh, uh huh means, i agree or i'm paying attention to your story uh huh, uh huh and then what happened oh uh huh, mmmm means i agree mmm, mmm, mmm, mmm means that something is tasty or i'm really comfortable mmm mmm so good uh means i don't know about that uh are you sure uh uh means no nuh, uh, also means no nuh, uh, uh, uh, hmm means i don't know what to say i don't remember or just i don't know and um what's it um? what's it called hmmm means, i'm thinking hmm ugh means that's disgusting or i'm annoyed ugh means that's gross means i don't approve of that oh means whatever, just happened wasn't good oh oh。 学会了吗?嗯哼。