Translation of mandarin in German

We returned to the former capital of the South at dawn and were dropped next to our place. We had a very nice day all in all, although it was very touristy. We felt that we have seen enough of the area.
Hey. You are online! Pollution means that the air is filthy and that it is hard to breathe. I'm getting much better at German, so please correct me when I am wrong in my language. You're English is actually great.
Yes, I know that because I have visited there. I speak German and I am working on my Spanish. Where are you from originally? Are you going to a some language school and what is the best way to learn for you?