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

I'll play my trump card in the final round.
在最后一局我会出王牌。
Curviness is the trump card.
但是曲线美才是王牌。
Jobs are the trump card.
就业是一张王牌。
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。
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。
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。
It is always good to enter negotiations with a trump card.
手握一张王牌去谈判总是件好事。
But the real disappointment for Yahoo shareholders is that the company threw away its trump card so cheaply.
但真正令雅虎股东失望的是，雅虎如此轻易地丢掉了自己的王牌。
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。