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

We always adhere to customer-centered, high-quality products for the "trump card";
公司始终坚持以客户为中心，以高品质的产品为“王牌”；
The US faces special pressures in an election year, but it holds the trump card.
美国在选举年面临特殊压力，但是它手里握着王牌。
I'll play my trump card in the final round.
在最后一局我会出王牌。
In the end, the Ten took their appeal to the Supreme Court; this, they had believed from the outset, would be their trump card
最后，10个人上诉到最高法院：他们从一开始就认为这一招是他们的王牌。
The candidate still has one more trump card to play.
候选人手里还有一张王牌。
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。
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。
The United States also needs to help people adjust to change, so that it can maintain its greatest trump card: openness to trade, investment, people, and ideas.
美国还需要帮助民众适应变化，以便确保它的最大优势：对贸易、投资、民众和观念的开放。
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。