dog-leg stair
(亦作dog-leg staircase)
noun
- a staircase which has no well and a bend of 180° in it, usually at a landing halfway between floors层间（无梯井的）双折楼梯。
| 单词 | dog-leg stair |
| 释义 | dog-leg stair(亦作dog-leg staircase) noun
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