knock out
使某人或某物筋疲力尽、完全击败或昏迷
口语或书面·击败或累垮
英文释义
to defeat or overcome someone or something with great force or impact
例句
The boxer knocked out his opponent in the first round.
典故来源
源自拳击术语，指击倒对手使其失去意识，后泛指击败或耗尽。