名词
中文翻译：关节液
同义词：
['synovial fluid', 'joint effusion例句：1. The doctor drained the joint fluid to relieve his pain.（医生将关节液排空以缓解他的疼痛。）']
例句：
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1. The doctor drained the joint fluid to relieve his pain.
医生将关节液排空以缓解他的疼痛。
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2.Joint fluid is essential for maintaining joint health.
关节液对保持关节健康至关重要。
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3.The patient's condition worsened after the joint fluid was removed.
患者的状况在关节液被移除后恶化了。