名词中文翻译
中文翻译：后膝
同义词：
['knee', 'back of the knee']
例句：
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1.He sat down on the couch and rested his back knee on the armrest.
他坐在沙发上，把后膝靠在扶手上休息。
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2. She stretched her back knee and tried to ease some pain in her lower back.
她伸展后膝并试图缓解下背部的疼痛。
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3. During a long run, it's important to keep your back knee straight to prevent injury.
在长跑过程中，保持后膝直挺以防止受伤是很重要的。