Can you clean the coat of these dirty marks?

你能把这件外套上的污点洗掉吗？

youdao

First you must drain the dirty water out and then clean the pipe.

你必须先让污水排出去，然后再清洗管道。

youdao

First you must drain the dirty water out and then clean the pipe.

你必须先让污水排出去，然后再清洗管道。

youdao