The administration knows that's their trump card and will keep playing it as long as they can.

政府知道那是他们的王牌，会尽可能长久地使用它。

《柯林斯英汉双解大词典》

The trump card is the Andes mountain range.

王牌是安第斯山脉。

youdao

The propagandists' trump card "wreck our brilliant health care system".

宣传者的王牌“破坏了我们卓越的医疗保健系统”。

youdao

the other is that the only trump card they have is a nuclear fuel and they would like to use that to maximize humanitarian assistance, economic assistance they would like to get,"

VOA: standard.2009.11.04

The debt ceiling vote is a Republican trump card that has the backing of American voters.

FORBES: Debt Ceiling Vote Is Republican Leverage For Budget Reform

"The struggling economy could be Obama's trump card, " CNN Senior Political Researcher Alan Silverleib noted.

CNN: Obama hammers McCain over Social Security

Kumaratunga's trump card has been to offer the Tamils regional autonomy in the north and east.

CNN: From Our Correspondent: Kumaratunga Under Siege