名词
中文翻译：屁股
同义词：
['buttocks', 'rear end']
例句：
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1.She sat on the couch with her butt in the air.
她坐在沙发上，屁股翘起来。
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2. The butt of his joke was that he forgot to bring his umbrella.
他的笑话的尾巴是他没有带伞。
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3.He sat down on the chair, and his butt hit the floor.
他坐到了椅子上，屁股碰到了地板。