- as fit as a fiddle非常健康，感觉良好;神采奕奕;
- a while一会儿
- a slip of the tongue失言，口误;
- a prioriadj.& adv.推理的，演绎的推理地，演绎地;验前;先验;
- a large number of很多;
- a dark horsen.<口>黑马（意外得胜的马）;实力难测的赛马;实力难测的竞争者;出人意外的获胜者;
- a couple一对；一双;
- a cliffhanger一个悬崖峭壁
- a bar of一个酒吧
- break a butterfly on the wheel小题大做， 杀鸡用牛刀;牛鼎烹鸡;
- cut offvt.切除;切[隔]断;剪[切， 砍]下;迅速离开;（疾病等）使（人）死亡;
- cut away切; 去掉;切成;迅速离开;
- compose a poem写诗;
- check boxn.复选框;
- draw a conclusion得出结论，告一段落;
- for a song极便宜地;
- get in a word插话;
- hang by a hairv.千钧一发;
- in a jam<美，口>困境;
- in a fix处境困难，进退两难;困难重重;不上不下;
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