名词
中文翻译：膝盖点
同义词：
['kneecap', 'knee mark例句：1. He sat down on the couch with his knees bent at a right angle.（他坐在沙发上，膝盖弯曲成直角。）']
例句：
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1. He sat down on the couch with his knees bent at a right angle.
他坐在沙发上，膝盖弯曲成直角。
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2.The doctor used a needle to numb the knee point before performing surgery.
医生用针在手术前给膝盖点麻醉。
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3.She carefully placed her foot on the floor and aimed her knee point towards the wall.
她小心翼翼地把脚放在地板上，将膝盖点对准墙壁。