locomotive repair in works

例句：

1. 1. The engineer inspected the locomotive before it left the station.
   工程师在火车离开车站前检查了机车。
2. 2.The locomotive was a marvelof engineering.
   这台机车是工程学的奇迹。
3. 3. The locomotive'sengine roared to life as it pulledaway from the station.
   火车头引擎轰鸣着从车站出发。