trump card
英 美
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。
The trump card is the Andes mountain range.
王牌是安第斯山脉。
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”。
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