ace up one's sleeve

短语

秘密王牌

发音

AU

词形变化

aces up one's sleeve 复数 aces up one's sleeve

释义与例句

n.
  1. 1.

    A surprise advantage of which others are not aware.

    秘密王牌

    习语

词源

From the dishonest hiding of a high-value ace card for use during play, e.g. in the game of poker.

来源：wiktionary