step·lad·der 
(stĕplăd′ər)
(stĕplăd′ər)n.
A portable ladder with a hinged supporting frame and usually topped with a small platform.
| 单词 | stepladder |
| 释义 | step·lad·der (stĕplăd′ər)n. A portable ladder with a hinged supporting frame and usually topped with a small platform. |
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