名词
中文翻译：Unknown
同义词：
['swelling', 'swellings']
例句：
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1.The flagellar swelling in the bacteria is a sign of infection.
细菌中的鞭毛膨胀是感染的一个标志。
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2. The swelling in the arm was caused by an allergic reaction.
手臂的肿胀是由过敏反应引起的。
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3.The swelling in the leg is due to a blood clot.
腿部肿胀是由于血栓引起的。