stair rail

例句：

1. 1. Thestairs are narrow, so it'simportant to use the stair rail whenclimbing them.
   楼梯很窄，所以爬楼梯时一定要使用扶手。
2. 2. The new apartment hasa beautiful stair rail that addsto the overall design.
   新公寓的楼梯栏杆设计得非常漂亮，为整体设计增色不少。
3. 3. The elderly man was carefullyusing the stair rail to helphim up the stairs.
   这位老人小心翼翼地使用楼梯栏杆帮助他上楼梯。