名词
中文翻译：外颚
同义词：
['outer jaw', 'outer margin']
例句：
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1.The surgeon carefully removed the tumor from the patient's exognathion.
外科医生小心翼翼地从病人的外颚部取出了肿瘤。
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2. The anatomy textbook described the structure of the exognathion in detail.
解剖学教科书详细描述了外颚的结构。
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3. The dentist advised the patient to avoid chewing on the hard food due to its sharp edges, which could potentially damage the exognathion.
牙医建议病人避免咀嚼硬食物，因为其边缘锋利，可能会损坏外颚。