satety brake

例句：

1. 1. The car's safety brake is engaged.
   汽车的安全制动器已经启动。
2. 2.The train has a safety stop at every major station.
   火车在每个主要车站都有一个安全停靠站。
3. 3. The driver applied the emergency brake to avoid a collision.
   司机紧急制动以避免碰撞。