trump card

英 [ˈtrʌmp kɑːd]

美 [ˈtrʌmp kɑːrd]

n. 王牌; 绝招; 杀手锏

牛津词典

noun

王牌；绝招；杀手锏
something that gives you an advantage over other people, especially when they do not know what it is and you are able to use it to surprise them

noun

a playing card in the suit that has been declared trumps
1. the ace of trumps is a sure winner
Synonym:trump

His trump card played, captain lmrie rested his case.
在打出了王牌之后，伊姆里船长便静候分晓。
His other trump card is his financial independence.
韩寒的另外一张王牌就是他的经济独立性。
Nor can we any longer fall back on our historical trump card of geographic isolation.
我们也不再能依靠天然屏障的历史王牌。
The candidate still has one more trump card to play.
候选人手里还有一张王牌。
Spatial sound reproduction, the loudspeaker's trump card ever since, is noticeably more three dimensional and offers a much larger spatial image.
音场表现是这对喇叭的王牌，它可以营造出一个更加立体的三度空间音场，空间感也更为广阔。
Not many people know it but shutting up can be the trump card in a lot of situations.
不是每个人都知晓这一点，但沉默在很多场合下的确是最好的王牌。
Now it's time that you played your trump card.
现在是你摊王牌的时候了。
An unstoppable trump card with enough power to bring order to the world.
一张所向披靡的王牌将命令这个世界。
The opponent has to play his trump card to secure his third trick.
对方只好打出将牌以赢得第三墩牌。
Jack showed his trump card at the last minute.
杰克在最后一刻打出了王牌。