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汉语拼音：dāo kǒu

1.刀上用来切削的一边：～锋利。

2.比喻最能发挥作用的地方：钱要花在～上。把力量用在～上。

3.动手术或受刀伤时拉（lá）开的口子：～已经愈合。

1. 指刀用来切削的一边。

   郭沫若 《孔雀胆》第四幕第一场：“我们现在是在刀口上走索桥，要走得过才算事。”

2. 喻关键处。

   陈登科 《风雷》第一部第三一章：“决定那三十万斤粮食，暂时一粒不动，坚决不动，留着用在刀口上。”

3. 动手术或受刀伤留下的伤口。

   周而复 《白求恩大夫》十一：“当时他手上全是红殷殷的鲜血，刀口也不痛，自己一点也没注意它。”

• The cut will not leave any scar.

  这刀口不会留下疤痕.

• He turned the edge of the knife.

  他使刀口卷刃[变钝].

• He snapped the little lock with the blade of his stiletto.

  他用短剑刀口迅速将锁撬开.

• The nurse quickly sponged off the blood round the incision.

  护士迅速把刀口周围的血用海绵吸掉.

• He bought a razor with a keen edge.

  他买了一把刀口锋利的剃刀.

• The hopper bottom sword is double close set, edge is pressurize rigorous.

  出料口底刀为双重闭合装置,刀口密封严密.

• The flat - edged cutting part of a sharpened weapon or tool.

  刀刃削磨用的武器或工具的刀口处用来切割的部分.

• It is equal arm Balance which has double beam and Pan.

  复梁式双盘等臂天平、采用钢带弹性作支承,无刀口磨损现象.

• I have scars from knife wounds, from almost getting killed.

  我身上有刀口伤疤的痕迹, 那次差点就被河蟹了.

• Self - locking include self - locking teeth external blade, silicon rubber gasket, internal ring.

  环切吻合器( 自锁 式)由含自锁齿外环刀口 、 硅橡胶垫环 、 内环构成.

• The finest edge is made with the blunt whetstone.

  最好(锋利的)刀口是由钝的磨刀石磨成的.

• Hold edged tools with the blade down, for safety.

  手持磨刀工具时刀口朝下, 以确保安全.

• You have only one low, side - to - side scar from a C - section.

  你只有一次低位, 横向刀口的剖腹产.

• Chemically reduced step is smaller than Type A, yielding added stiffness.

  化学方法加工的薄刀口,刀口较A型要短, 增加刀口硬度.

• His stiff beard turns the edge of the razor.

  他的硬胡子把剃须刀的刀口给弄钝了.