名词
中文翻译：Unknown
同义词：
['ladder', 'ladder rung', 'ladder step例句：1. The ladder was too short to reach the top of the tree.（梯子太短，够不到树上。）']
例句：
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1. The ladder was too short to reach the top of the tree.
梯子太短，够不到树上。
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2. The ladder rungs were old and worn out.
梯子的横档旧了，磨损严重。
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3.The ladder steps were uneven, making it difficult to climb.
梯子的台阶不平，爬起来很困难。