brake head

例句：

1. 1. The car's brake system is the most critical part of the vehicle.
   汽车的刹车系统是车辆最关键部分。
2. 2.The brake head needs to be replaced regularly to ensure safe driving.
   刹车头需要定期更换，以确保安全驾驶。
3. 3.The brake head is responsible for stopping the vehicle when it hits a bump or turns.
   刹车头负责在车辆遇到颠簸或转弯时停止车辆。