throttle button

例句：

1. 1.The car's engine is so loud that it can be heard from a mile away.
   这辆车的引擎声音很大，可以传得很远。
2. 2. The pilot throttled back the plane's speed to land safely.
   飞行员将飞机的速度减慢以安全着陆。
3. 3.The driver pressed the throttle button to accelerate the car.
   司机按下油门按钮以加速汽车。