| 单词 | 牙质 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔dentin〕The main, calcareous part of a tooth, beneath the enamel and surrounding the pulp chamber and root canals.牙质，齿质：牙齿主要的钙质部分，在珐琅质下面，牙髓周围，植根于牙床的管道内美国传统〔ivory〕A hard, smooth, yellowish-white substance composed primarily of dentin that forms the tusks of the elephant.象牙质：主要由象牙质组成的坚硬、光滑、黄白色的物质，这种物质构成了大象的牙齿美国传统〔odontoblast〕One of the cells forming the outer surface of dental pulp that produces the dentin of a tooth.成牙质细胞：形成能制造牙质的牙髓表面的细胞美国传统 |
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