名词
中文翻译：屁股
同义词：
['buttocks', 'rump', 'hips']
例句：
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1.She sat on the couch with her buttocks sticking out.
她坐在沙发上，臀部凸出。
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2.The buttocks of the horse are strong and muscular.
马的臀部强壮有力。
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3. He sat down on the chair with his buttocks facing the door.
他坐在椅子上，臀部对着门。