nani?
what?
co?
I don't speak chinese, only polish and english. and i know a little bit of japanese.

Cool. I can't speak Polish. I've been learning Japanese since 5th grade. If you're even interested in learning more, I can help you.

Ok. But if you teach me Japanese, then I'll teach ya Polish. So... Whatcha say?

I've been really focusing on my Chinese. But sure, we'll teach each other.

You know what, maybe focus on your Chinese first.

Ok.

But I can only speak Polish not write in it even though I'm Polish myself.

Oh that's ok. The same applies for me and Spanish. I'm half Mexican but I can only speak Spanish.

Alright then....

Shuo zhong wen, dui ma?

Dui.

Xie xie. Wo bu dong hao zhong wen ;-)