第三人称单数： enamels
过去式： enameled enamelled
过去分词： enameled enamelled
现在分词： enameling enamelling

Scientists say any well-designed fluoride toothpaste will make enamel more acid resistant .

在专家看来，任何一支功效良好的含氟牙膏都能提高牙釉质的耐酸性。

An analysis of her tooth enamel suggests she ate fruit , nuts and leaves .

通过对牙釉质分析，她以水果，坚果及树叶为食。

However , overfluoridating children can lead to fluorosis -- disruption in enamel formation during tooth development .

不过，氟过量会导致儿童氟中毒在牙齿发育形成牙釉质时造成破坏。

They had the thickest tooth enamel of the early human ancestors .

在人类早期祖先中，他们牙齿的珐琅质是最厚的。

But creating a perfect ( uncracked ) enamel face is another delicate element of the watchmaker 's art .

但制作一个完美的（无裂缝的）珐琅表盘是制表工艺的又一大精湛技巧。