ramp input

例句：

1. 1. The car was driving down the ramp input when it suddenly stopped.
   汽车正在下坡时突然停了下来。
2. 2. The engineer had to ramp up the engine to get the car moving again.
   工程师不得不加大油门让汽车再次启动。
3. 3. The team decided to ramp down their efforts after a few days of intense work.
   团队决定在经过几天的紧张工作后降低努力强度。