trump card

劍橋詞典

an advantage that makes you more likely to succeed than other people , especially something that other people do not know about
獨(dú)有的優(yōu)勢(shì)，獨(dú)門法寶；王牌；絕招
Anthea was about to play her trump card - without her signature none of the money could be released . 安西婭準(zhǔn)備打出她的王牌——沒(méi)有她的簽字，一分錢也不能動(dòng)。 返回 trump card