名词
中文翻译：梯子
同义词：
['ladder', 'step ladder', 'staircase']
例句：
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1. She climbed the ladder to reach the top of the tree.
她爬上梯子到达树顶。
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2. The engineer used a ladder to inspect the roof.
工程师使用梯子来检查屋顶。
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3. The children were climbing the ladder to get to the top.
孩子们正在爬梯子爬到顶端。