名词
中文翻译：上颚
同义词：
['upper jaw', 'maxilla', 'rostrum例句：1. The upper mandible is the part of the skull that houses the teeth.（上颚是容纳牙齿的颅骨部分。）']
例句：
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1. The upper mandible is the part of the skull that houses the teeth.
上颚是容纳牙齿的颅骨部分。
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2.The dentist removed the upper mandible to perform a tooth extraction.
牙医移除了上颚以进行拔牙手术。
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3. The upper mandible plays a crucial role in chewing and grinding food.
上颚在咀嚼和研磨食物中起着至关重要的作用。