名词
中文翻译：口腔囊
同义词：
['oral capsule', 'oral sac']
例句：
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1.The buccal capsule is a protective structure that surrounds the teeth and gums.
口腔囊是一个保护结构，环绕着牙齿和牙龈。
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2.The buccal capsule plays a crucial role in maintaining the health of the mouth.
口腔囊在维护口腔健康方面起着至关重要的作用。
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3. During sleep, the buccal capsule expands to protect the soft tissues in the mouth.
在睡眠期间，口腔囊会膨胀以保护口腔内的软组织。