我跑上去踩下弹簧，松开它的脚。

I ran in and put my foot on the trap spring, mashed it down, and released his foot.

youdao

PowerFoot One采用电动机、弹簧、传感器和一个精密控制系统模拟脚和踝关节每一动作环节的能量传送机理。

The PowerFoot One USES motors, springs, sensors and an elaborate control system to emulate the energy-transfer mechanisms of the foot and ankle at each stage of a stride.

youdao

不要烦躁：最糟糕的就是人们玩弄他们的头发、按笔的弹簧、用脚敲地或是下意识地触摸身体某些部分。

Don't Fidget: There is nothing worse than people playing with their hair, clicking pen tops, tapping feet or unconsciously touching parts of the body.

youdao