| 释义 |
tooth enamel
释义
牙釉质：牙齿可见部分的坚硬的矿化物质。
例句
1·The root isn't covered with tooth enamel .
牙根是没有牙釉质盖住的。
2·As we age, the outer layer of tooth enamel wears away.
随着年龄增长，我们牙齿外层的釉质会慢慢地磨损。
3·Tooth enamel analysis revealed they ate fruit, nuts and leaves.
—经牙釉质分析后显示，他们以水果，坚果和树叶为食。
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