名词
中文翻译：关节开口
同义词：
['joint opening', 'joint cavity', 'joint space']
例句：
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1. The doctor performed a surgeryto repair the damaged cartilage inthe knee joint.
医生进行了手术来修复膝盖关节受损的软骨。
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2. The patientwas admitted to the hospitalfor further treatment of the jointinfection.
患者被收治入院，接受进一步治疗关节感染。
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3. The surgeon removed the foreignbody from the joint cavity and replaced itwith a prosthetic joint.
外科医生从关节囊中取出异物并用假体替换。