runaway train

例句：

1. 1. The runaway train caused a massive traffic jam onthe main road.
   脱轨的火车在主要道路上造成了严重的交通堵塞。
2. 2. The driver wasforced to stop the runaway train andrescue the passengers.
   司机被迫停下了脱轨的火车，并救出了乘客。
3. 3. Therunaway train had to be diverted to another track to avoid hitting anearby bridge.
   脱轨的火车不得不被转移到另一条轨道上，以避免撞到附近的桥梁。