wear out
使用過多而造成物品損壞或不能使用的狀態(tài)
口語·表達(dá)極度疲勞
英文釋義
to become exhausted or tired, usually as a result of physical or mental exertion
例句
I've been running all day, and I'm completely worn out.
典故來源
源自物理磨損概念，引申為精力耗盡，16世紀(jì)起用于形容人極度疲勞。