I'm afraid you have to wait for a while. He's gone to clean the street with his group.

恐怕你要等一会儿了。他和他的小组去打扫街道了。

youdao

It's even harder to clean up after the trekkers once they are gone.

更加困难的事是，在游客离开之后的垃圾清理工作。

youdao

It's even harder to clean up after the trekkers once they are gone.

更加困难的事是，在游客离开之后的垃圾清理工作。

youdao