knife

knife
(pl. knives )
  1. a cutting instrument composed of a blade and a handle into which it is fixed, either rigidly or with a joint
    刀，小刀
    ■an instrument such as this used as a weapon
    匕首；刺刀
    ■a cutting blade forming part of a machine
    （机器上的）刀片，刀具
verb
  1. [with obj.]stab (someone) with a knife
    用刀刺（人）
    ■[no obj., with adverbial]cut like a knife
    （像刀一样）割破
    a shard of steel knifed through the mainsail.
    一块钢片割开了大桅帆。
常用词组
before you can say knife
  1. (informal)very quickly; almost instantaneously
    (非正式)极快地，立刻
(that) one could cut with a knife
  1. (of an accent or atmosphere) very obvious
    （口音，气氛）非常明显的
get (或 stick) the knife into (或 in) someone
  1. (informal)do something hostile or aggressive to someone
    (非正式)加害某人，跟某人过不去
go (或 be) under the knife
  1. (informal)have surgery
    (非正式)做手术
the knives are out for someone
  1. (informal)there is open hostility (towards someone)
    (非正式)（对某人）剑拔弩张
like a hot knife through butter
  1. very easily; without any resistance or difficulty
    轻而易举；势如破竹
    anti-aircraft fire would slice through the car like a hot knife through butter.
    防空火力将轻而易举地把汽车打成碎片。
twist (或 turn) the knife (in the wound)
  1. deliberately make someone's sufferings worse
    故意让人更加痛苦，揭人疮疤
派生
knife-like
adjective
knifer
noun
语源
  1. late Old English cnīf, from Old Norse knífr, of Germanic origin
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