unintended braking

例句：

1. 1. The car's suddenstop was caused by an unintendedbraking system failure.
   汽车突然停止是由一个未预期的刹车系统故障引起的。
2. 2. Thedriver had to brake suddenly when the truckhit the curb.
   当卡车撞到路边时，司机不得不突然刹车。
3. 3. The unexpectedbraking of the traincaused a chain reaction that ledto several accidents.
   火车的意外刹车引发了连锁反应，导致了几起事故。