| 单词 | staircase |
| 释义 | staircase (also `stairway), n set of stairs (often with banisters) and its supporting structure, inside a building （建筑物内的）楼梯（常有栏杆） a spiral staircase, ie stairs winding round a central pillar 螺旋式楼梯. =>illus 见插图. |
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