Double-Spiral Stair Case 双螺旋的楼梯
Spiral Stair Case 双螺旋的楼梯
auditory stair case illusion 听觉梯级错觉
newel type spiral stair case 有中柱的盘旋扶梯
arch stair case 拱形楼梯
Stage stair case 高台梯级
attic stair case 顶楼楼梯
stair-case signal 阶梯信号
N-COUNT A staircase is a set of stairs inside a building. (建筑物内的) 楼梯通道
They walked down the staircase together.
他们一起沿楼梯通道往下走。
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