名词
中文翻译：可膨胀囊
同义词：
['expandable sac', 'expandable bag']
例句：
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1.The surgeon carefully removed the eversible sac from the patient's chest.
外科医生小心翼翼地从病人的胸腔中取出了可膨胀囊。
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2. The engineer designed an expandable sac that could be inflated with air.
工程师设计了一个可充气的可膨胀囊。
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3. The eversible sac was used to contain and protect fragile objects during surgery.
可膨胀囊被用来在手术中保护和包裹脆弱的物品。