名词
中文翻译：牙齿的牙釉质
同义词：
['dental enamel', 'enamel of teeth例句：1. The dentist advised her to brush her teeth twice a day.（牙医建议她每天刷牙两次。）2. The enamel on the front teeth is very thin and easily wears down.（前牙的牙釉质非常薄，很容易磨损。）']
例句：
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1. The dentist advised her to brush her teeth twice a day.
牙医建议她每天刷牙两次。
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2. The enamel on the front teeth is very thin and easily wears down.
前牙的牙釉质非常薄，很容易磨损。
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3.Enamel is a hard outer layer that covers the surface of teeth.
牙釉质是覆盖在牙齿表面的硬外层。