the structure formed by the uprights and handrail at the side of a staircase
(楼梯)扶手。
a single upright at the side of the staircase
(楼梯扶手上的一根)竖杆
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I stuck my head between the banisters .我把头卡在了楼梯扶手的竖杆中间。
"mid 17th cent.: from earlier