tooth enamel編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看tooth enameltooth enamel — 名詞名詞1. the hard, white outer layer of a tooth1.名詞釋義琺瑯質the hard, white outer layer of a tooth例句Tooth enamel is the hardest substance in the human body.