名词
中文翻译：屁股
同义词：
['butt', 'ass', 'rear end']
例句：
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1.She sat on the couch with her butt sticking out.
她坐在沙发上，屁股凸出。
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2.The butt of the joke was that it was a bad idea.
笑话的结尾是，这是个糟糕的主意。
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3. He squatted down to avoid hitting his butt on the chair.
他蹲下来避免撞到椅子的屁股。