handling rail

例句：

1. 1. The handling rail is designed to prevent the car from rolling off the road.
   处理栏杆的设计是为了防止汽车从路上滚下。
2. 2. The handrails on the stairs were too low for my small hands.
   楼梯上的扶手太低，我的手太小了。
3. 3. The guardrail was installed at the edge of the cliff to prevent people from falling off.
   在悬崖边缘安装了护栏以防止人们跌落。