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

This is my trump card. I never use it easily.
这可是我的杀手锏，不轻易使用的！
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。
Proximity to America, Mexico's trump card, has been made more valuable by the high oil price.
邻近美国是墨西哥的王牌，这使得高油价更有价值。
Now it's time that you played your trump card.
现在是你摊王牌的时候了。
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。
'What's her trump card?
什么是她的王牌呀？
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。
Jobs are the trump card.
就业是一张王牌。
Jack showed his trump card at the last minute.
杰克在最后一刻打出了王牌。
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。