名词
中文翻译：膝盖
同义词：
['knees', 'knee', 'cruciate']
例句：
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1.She sat down on the couch with her knees pulled up to her chest.
她坐在沙发上，膝盖蜷缩到胸前。
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2. He had to bend his knee to get through the narrow passage.
他不得不弯下膝盖才能穿过狭窄的通道。
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3. The doctor advised him to exercise regularly to prevent knee injuries.
医生建议他定期锻炼以防止膝盖受伤。