Her heart hammering, she peeked through the stair railing.
她透过楼梯栏杆偷看了一眼，心怦怦直跳。
Stair Railings
原声例句
头脑特工队2
中文百科
楼梯 Stairs
（重定向自Stair Railings）
楼梯是建筑垂直交通的一种主要解决方式，用于楼层之间和高差较大时的交通联系。高层建筑尽管采用电梯作为主要垂直交通工具，但是仍然要保留楼梯供紧急时逃生或平时之用。
楼梯主要由楼梯段、休息板（平台）和栏杆扶手（栏板）三部分组成。
英语百科
Stairs 楼梯
（重定向自Stair Railings）
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A stairway, staircase, stairwell, flight of stairs, or simply stairs is a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps. Stairs may be straight, round, or may consist of two or more straight pieces connected at angles.
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