名词
中文翻译：膝盖骨
同义词：
['kneecap', 'patella例句：1. He sat on the couch with his knees bent.（他坐在沙发上，膝盖弯曲着。）']
例句：
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1. He sat on the couch with his knees bent.
他坐在沙发上，膝盖弯曲着。
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2. The doctor examined her knee and found no signs of injury.
医生检查了她的膝盖，没有发现任何受伤的迹象。
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3. She limped as she walked across the room.
她走路时一瘸一拐的。