I know he is sad, but that is no justification for his rude behavior.

我知道他很伤心，但这并不能为他的粗鲁行为辩解。

youdao

I know he is sad, but that is no justification for his rude behavior.

我知道他很伤心，但这并不能为他的粗鲁行为辩解。

youdao