“Come up trumps” 是一个地道的表达，它的意思是 “成功地完成一项任务，结果出乎意料地令人满意”。它由动词短语 “come up（某事意外发生）” 和名词 “trump（卡牌游戏中的王牌）” 构成。这个表达中的 “come up” 可以用 “turn up” 替换，即 “turn up trumps”，意思不变。

例句
I thought Roger had forgotten our anniversary, but he came up trumps in the end. He organised a surprise dinner!
我以为罗杰忘了我们的纪念日，但他却给了我一个惊喜，安排了一顿晚餐！

Our team turned up trumps with a brilliant closing statement and won the business competition!
我们的团队以一段精彩的结束陈词出乎意料地赢得了那场商业比赛！

Betty came up trumps and scored the winning goal, even though she’d hurt her knee.
贝蒂在最后时刻力挽狂澜，赢得了制胜一球，尽管她伤了膝盖。