ace in the hole
1. 备用的应急手段(或办法); 秘藏的王牌
A good negotiator always has more than one ace in the hole.
谈判高手总有数张王牌在手。
His strength in a crisis is an ace in the hole.
临危不惧是他的看家本领。
within an ace of
1. 差一点
He came within an ace of death.
他几乎送了命。
习惯用语an ace in the hole1.应急的法宝, 备用的有效办法2.在患难中可以依靠的朋友bate an ace1.稍稍降低要求, 让一手hold [have] the aces1.[口]手中握有王牌, 有制胜的法宝keep [have] an ace up one's sleeve1.获有最重要的情报, 手中留有王牌; 有应急的妙计not an ace1.毫无the ace of aces1.特级“王牌”飞行员; 能手中的能手the ace of trumps1.王牌; 最有力的根据within an ace of ...1.差点, 几乎, 险些儿ace in1.[美俚]惹人注目; 讨人喜欢