knockout /ˈnɒkˌaʊt/ (also knock-out)

• 1. 

  N-COUNT In boxing, a knockout is a situation in which a boxer wins the fight by making his opponent fall to the ground and be unable to stand up before the referee has counted to ten. (拳击中的) 击倒获胜 [also 'by' N]

  例：

  Lennox Lewis ended the scheduled 12-round fight with a knockout in the eighth round.

  莱诺克斯·刘易斯在第8回合击倒对方，结束了预定12回合的比赛。

• 2. 

  ADJ A knockout blow is an action or event that completely defeats an opponent. 彻底击败对手的 [ADJ n]

  例：

  He delivered a knockout blow to all of his rivals.

  他彻底击败了所有对手。

• 3. 

  ADJ A knockout competition is one in which the players or teams that win continue playing until there is only one winner left. 淘汰制的 (比赛) [英国英语] [ADJ n]

• 4. 

  N-SING If you describe someone as a knockout, you think that they are extremely attractive or impressive. 引人注目的人 [非正式]

  例：

  Jill was a knockout with her biker leathers and t-shirt.

  吉尔穿上她的摩托车皮衣和T恤衫非常引人注目。