pedrail

例句：

1. 1. The train was delayed due to the construction of the new platform rail.
   由于新建站台栏杆，火车被延误了。
2. 2. The guardrails were designed to prevent people from falling off the edge of the cliff.
   护栏的设计是为了防止人们从悬崖边缘摔下去。
3. 3. The children were playing safely on the platform rail while their parents waited in the car.
   孩子们在站台栏杆上安全地玩耍，而他们的父母则在车里等待。