manual cranking handle

例句：

1. 1. The manual cranking handle on the car is easy to use.
   汽车上的手动曲柄很容易使用。
2. 2. The manual cranking handle is a great way to start the engine.
   手动曲柄是启动发动机的好方法。
3. 3. The manual cranking handle was designed for people who are not able to use a remote control.
   手动曲柄是为那些不能使用遥控器的人设计的。