His strength in a crisis is an ace in the hole.

临危不惧是他的看家本领.

辞典例句

Tom's strength in a crisis is an ace in the hole.

临危不惧是汤姆的看家本领.

互联网

The prosecutor had an ace in the hole: an eyewitness.

检举人有秘密武器(神秘王牌): 目击者.

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Your competitors do not know that you are an ace in the hole.

你的竞争者不知道你会有这样有用的办法.

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