Both Bonn University and Cologne University have translation majors. Sinology can be used as an auxiliary major, which will be easier. Mainly to learn a second foreign language, proficient. English is very demanding. If your English is difficult, no problem. There was once a classmate in the English Department of Beijing Foreign Studies University who studied translation in Germany.

If the third foreign language is not particularly good, you can choose some languages similar to Chinese, which is helpful for graduation. Such as Japanese, Korean and so on.

For reference only.

German liberal arts universities and comprehensive universities basically have translation majors.

I wish you success!