名词
中文翻译：Unknown
同义词：
['brakes', 'stopper', "retarder例句：1. The car's speed brake is activated when the driver hits the brake pedal.（当司机踩下刹车踏板时，汽车的速度制动器会被激活。）2. The engineer used a speed brake to slow down the train before it reached the station.（工程师使用一个速度制动器来减缓火车在到达车站之前的速度。）"]
例句：
-
1. The car's speed brake is activated when the driver hits the brake pedal.
当司机踩下刹车踏板时，汽车的速度制动器会被激活。
-
2. The engineer used a speed brake to slow down the train before it reached the station.
工程师使用一个速度制动器来减缓火车在到达车站之前的速度。
-
3.The race car had a powerful speed brake that could stop it in an instant.
这款赛车拥有强大的速度制动器，可以在瞬间停止它。