名词
中文翻译：台阶
同义词：
['stair', 'step', 'riser']
例句：
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1.The old man sat on the top of the steps to rest.
老人坐在台阶上休息。
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2.The children ran up the stairs to play in their room.
孩子们跑上楼梯去他们的房间玩。
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3. The elevator stopped at the top of the stairs and let out a loud noise.
电梯停在楼梯顶端，发出了响亮的声音。