| 单词 | 楼梯井 |
| 释义 | 〔well〕An open space extending vertically through the floors of a building, as for stairs or ventilation.楼梯井，通风井：垂直地通过建筑物各层的开阔空间，如为了建楼梯或通风〔stairwell〕A vertical shaft around which a staircase has been built.楼梯井：被楼梯围绕的竖井 |
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