a set of steps leading from one floor of a building to another, typically inside the building
楼梯
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he came up the stairs .他走上楼来。
single step in such a set
梯级
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the bottom stair .最下面一级楼梯。
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stairn.楼梯;梯级
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starn.星;恒星;星形;明星;主角;星宿;命运;运气;星号;星象
"Old English