(informal)very quickly; almost instantaneously(非正式)極快地，立刻
(that) one could cut with a knife
(of an accent or atmosphere) very obvious（口音，氣氛）非常明顯的
get (或 stick) the knife into (或 in) someone
(informal)do something hostile or aggressive to someone(非正式)加害某人，跟某人過(guò)不去
go (或 be) under the knife
(informal)have surgery(非正式)做手術(shù)
the knives are out for someone
(informal)there is open hostility (towards someone)(非正式)（對(duì)某人）劍拔弩張
like a hot knife through butter
very easily; without any resistance or difficulty輕而易舉；勢(shì)如破竹
twist (或 turn) the knife (in the wound)
deliberately make someone's sufferings worse故意讓人更加痛苦，揭人瘡疤
under the knife【非正式用語(yǔ)】
Undergoing surgery.進(jìn)行外科手術(shù)
英語(yǔ)四級(jí)真題
If we ask Americans why they eat with knives and forks, or why their men wear pants instead of skirts, or why they may be married to only one person at a time, we are likely to get similar and very uninformative answers: "Because it's right.
出自-2013年12月聽(tīng)力原文
英語(yǔ)六級(jí)真題
They cut it themselves into very thin slices with a long flat knife.
2018年6月六級(jí)真題(第二套)聽(tīng)力 Section A
柯林斯高階英漢雙解學(xué)習(xí)詞典釋義
N-COUNT
刀
A knife is a tool for cutting or a weapon and consists of a flat piece of metal with a sharp edge on the end of a handle.
If a lot of people want something unpleasant to happen to someone, for example if they want them to lose their job, you can say that the knives are out for that person.
If you twist the knife or if you turn the knife in someone's wound, you do or say something to make an unpleasant situation they are in even more unpleasant.