名词
中文翻译：嘴唇瓣膜
同义词：
['lip fold', 'lipmargin']
例句：
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1. The patient's lip flap was torn open duringsurgery.
病人的嘴唇瓣在手术中被撕裂了。
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2. The doctor used a lipflap to repair the wound.
医生用一个嘴唇瓣来修复伤口。
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3. Thepatient was able to closehis mouth with a lip flap.
病人能够用嘴唇瓣闭合他的嘴巴。