Yes, what was wrong with your old human teeth?
你到底把自己的牙怎么了？
The wear of human teeth is an inevitable physiological process.
人体天然牙的磨损是无法避免的。
RESULTS Proliferating cell nuclear antigen had different distribution in each stage during human teeth development.
结果增殖细胞核抗原在人牙齿发育各阶段具有不同的表达模式。
Human teeth are almost as hard as rocks.
人的牙齿几乎和石头一样硬。
Human teeth are almost as hard as rocks.
人的牙齿几乎和石头一样硬。
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