go in one ear and out the other
一耳朵進，一耳朵出，形容聽了卻不記住或不理解
口語·表達聽而不記
英文釋義
to be quickly forgotten or not understood
例句
I told him to clean his room, but it went in one ear and out the other.
典故來源
源自16世紀英語諺語，形容信息未被記住，像穿過耳朵一樣。