做某事沒有什麼壞處
there is no harm in (sb's) doing sth
used to tell sb that sth is a good idea and will not cause any problems
He may say no, but there's no harm in asking.他可能拒絕,但問一問也無妨。
釋義來自《牛津高階英漢雙解詞典》第 9 版