机车

例句：

1. 1. The train is pulling out of the station with its locomotive roaring.
   火车正带着它的机车轰鸣着驶出车站。
2. 2. The engineer had to stop the locomotive and inspect the tracks for damage.
   工程师不得不停下机车，检查轨道是否有损坏。
3. 3. The locomotive was a marvel of engineering, capable of moving mountains at speeds unimaginable today.
   这台机车是工程奇迹，能在今天难以想象的速度下移动山脉。