have a trick up sleeve
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释义
锦囊妙计
To have a secret plan, idea, or advantage that can be utilized if and when it is required. A reference to cheating at a card game by hiding a favorable card up one's sleeve.
例句
Petto: See you in court!
Caroline: Nothing. He's gonna sue us, and we have no other tricks up our sleeve.(2 Broken Girls)
佩托：法庭上见！
卡罗琳：完了，他真要起诉了，咱们无计可施了。（破产姐妹）
