名词
中文翻译：磨牙
同义词：
['last tooth', 'last molar']
例句：
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1.The dentist is examining the patient's teeth.
牙医正在检查患者的牙齿。
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2. The patient had to have his fillings done before the operation.
患者在手术前不得不做填充治疗。
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3.The dentist advised him to take care of his teeth regularly.
牙医建议他定期照顾牙齿。