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

The candidate still has one more trump card to play.
候选人手里还有一张王牌。
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。
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。
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。
Curviness is the trump card.
但是曲线美才是王牌。
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。
'What's her trump card?
什么是她的王牌呀？
Jobs are the trump card.
就业是一张王牌。
When his father refused to let him have his own way, the child played his trump card by crying.
看到爸爸没有如自己的意，那孩子便使出绝招，哇的一声哭了起来。
Jack showed his trump card at the last minute.
杰克在最后一刻打出了王牌。