名词
中文翻译：下颌
同义词：
['jaw', 'lower part of the face例句：1. The dentist had to remove the lower jaw bone for the surgery.（牙医为了手术不得不移除下颌骨。）']
例句：
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1. The dentist had to remove the lower jaw bone for the surgery.
牙医为了手术不得不移除下颌骨。
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2.The lower jaw was clenched tightly, as if it were holding something back.
下颌紧闭，仿佛在压抑着什么。
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3.He lowered his lower jaw and spoke in a low voice.
他压低了下颚，低声说话。