| 词汇 | ace in the hole |
| 释义 | ace in the hole phr. 1. 最後王牌; 备用的应急手段 His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。 A good negotiator always has more than one ace in the hole. 谈判高手总有数张王牌在手。 |
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