permanent tooth
英
美
- n. 固齿；永久齿
详细释义
Noun:
-
any of the 32 teeth that replace the deciduous teeth of early childhood and (with luck) can last until old age
双语例句
- The exfoliation of the deciduous teeth is mainly brought about by resorption of their roots and enhances by growth and eruption of the succeeding permanent teeth.
总而官之，乳牙之所以会脱落主要在于它们的根部会发生吸收，而其下正在萌出的永久齿则增进了它在根部进行吸收的工作。
用作名词 (n.)
相关词汇
- adult tooth 固齿
【近义词】
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