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单词
permanent tooth
释义
permanent tooth
n.
(名词)
One of the second set of teeth in mammals that grow as the milk teeth are shed. Human beings have 32 permanent teeth.
恒齿,恒牙:哺乳动物的第二套牙齿之一,它是在乳牙脱落时生长起来的。人类有三十二颗恒牙
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更新时间:2026/6/4 0:23:20