stair·case 
(stârkās′)
(stârkās′)n.
A flight or series of flights of steps and a supporting structure connecting separate levels. Also called stairway.
| 单词 | staircase |
| 释义 | stair·case (stârkās′)n. A flight or series of flights of steps and a supporting structure connecting separate levels. Also called stairway. |
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