behindhand

例句：

1. 1.He reached behind his back and pulled out a gun.
   他伸手到背后拔出了一把枪。
2. 2. The chef used his behindhand to chop the vegetables.
   厨师用他的手背切蔬菜。
3. 3.She put her behindhand on the table to steady it.
   她用手背把桌子稳住了。