护路工人

例句：

1. 1. The railway workers are responsible for maintaining the tracks and bridges.
   铁路工人负责维护轨道和桥梁。
2. 2. The railway workers are expected to follow safety procedures when working on the tracks.
   铁路工人在轨道上工作时，应遵守安全程序。
3. 3. The railway workers have been working tirelessly to ensure the smooth operation of the trains.
   铁路工人一直在努力工作，以确保列车的顺利运行。