have a card up your sleeve

have a card up (one's) sleeve

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. She has a card up her sleeve if they ever try to fire her, since she knows about the boss's unscrupulous business practices.See also: card, have, sleeve, up

have a card up your sleeve

have a plan or asset that is kept secret until it is needed. BritishSee also: card, have, sleeve, up

单词	have a card up your sleeve
释义	have a card up your sleeve have a card up (one's) sleeve 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. She has a card up her sleeve if they ever try to fire her, since she knows about the boss's unscrupulous business practices.See also: card, have, sleeve, up have a card up your sleeve have a plan or asset that is kept secret until it is needed. BritishSee also: card, have, sleeve, up
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