1. the backward jerk of a gun when it is fired

2. a movement back from an impact

1. draw back, as with fear or pain;

   "she flinched when they showed the slaughtering of the calf"
   

2. come back to the originator of an action with an undesired effect;

   "Your comments may backfire and cause you a lot of trouble"
   

3. spring back; spring away from an impact;

   "The rubber ball bounced"
   "These particles do not resile but they unite after they collide"
   

4. spring back, as from a forceful thrust;

   "The gun kicked back into my shoulder"
   

1.退缩;后退
If something makes yourecoil, you move your body quickly away from it because it frightens, offends, or hurts you.

e.g. For a moment I thought he was going to kiss me. I recoiled in horror...
我当时以为他要亲我，所以吓得直往后退。
e.g. We are attracted by nice smells andrecoil from nasty ones.
我们会被好闻的味道吸引，难闻的味道则会让我们退避三舍。

2.（因为不喜欢而）拒绝，回绝，退避
If yourecoil from doing something orrecoil at the idea of something, you refuse to do it or accept it because you dislike it so much.

e.g. People used torecoil from the idea of getting into debt...
过去人们不能接受欠债这种事情。
e.g. She recoiled at the number of young girls who had to live by selling their bodies.
那么多年轻的女孩不得不靠出卖肉体谋生，她觉得难以接受。

3.（枪炮的）反冲
Therecoil of a gun is the quick backward movement that it makes when it is fired.

e.g. The policeman fires again, tensed against therecoil, unleashing round after round at his assailant...
警察再次开火，紧抵着反冲机构，不断向袭击他的人射击。
e.g. I assembled the weapon, checked the firing andrecoil mechanism and loaded it.
我把家伙组装起来，检查了一下击发和反冲机构，装上子弹。

1. 后座力：9毫米子弹的弹道平直,后座力(recoil)中等,和一般程度的停止作用(stopping power). 它主要的优势在于体积小,以及生产时只需要相当少的资源. 它主要的缺点是,当搭配非扩张性弹头时有过度穿透的倾向,以及不良的永久气穴效率(cavitation).

2. 反跳：屈曲损伤肌肉的收缩可使损伤平面上方之颈椎向后反跳(recoil)至原位,而不象成人那样常发生关节突关节的骨折或交锁. (3)纵向牵拉损伤:主要见于新生儿产伤. 一般来说,患儿越年轻,脊柱弹性越好,受到强烈牵拉时也越易受到损伤.

3. 无畏战车：但是现在不用怕了,Zipper Interactive,也就是许多优秀游戏例如<>,<>(recoil)和<>(MechWarrior 3)的开发商正在和微软合作开发一款全新的游戏叫<>(Crimson Skies)将会彻底打破这种模式.