foot rail

例句：

1. 1.The train was traveling at a steady pace along the foot rail.
   火车沿着轨道平稳地行驶。
2. 2.The engineer carefully inspected the foot rails before starting the new project.
   工程师在开始新项目之前仔细检查了轨道。
3. 3.The foot rails were reinforced to prevent any accidents during heavy traffic.
   为了预防交通高峰期间的任何事故，加固了轨道。