knock out
使某人或某物筋疲力盡、完全擊敗或昏迷
口語或書面·擊敗或累垮
英文釋義
to defeat or overcome someone or something with great force or impact
例句
The boxer knocked out his opponent in the first round.
典故來源
源自拳擊術語，指擊倒對手使其失去意識，后泛指擊敗或耗盡。