railing
noun [ C usually plural ] uk/ˈreɪ.lɪŋ/ us/ˈreɪ.lɪŋ/
（通常指金属或木头的）栏杆，围栏（或栅栏）的竖杆
a vertical post, usually metal or wooden, that is used together with other such posts to form a fence
Tourists pressed their faces against the palace railings. 游客们把脸紧贴在宫殿栅栏的栏杆上。
US（楼梯）栏杆扶手
the row of posts at the side of stairs and the wooden or metal bar on top of them
staircase railings 楼梯栏杆扶手
Synonym: banister