事ㄕˋ過ㄍㄨㄛˋ境ㄐㄧㄥˋ遷ㄑㄧㄢshìguò‑jìngqiān

简事过境迁

  1. 事情過去了，環境也跟著改變了。例 「事過境遷，別追究了」。

英The issue is in the past, and the situation has changed (idiom)​., It is water under the bridge.