Cellular cementum
[医] 含细胞牙骨质
🧩 词语组成解析
n. 牙骨质, 水门汀
🗣️ 情景例句
The wind's really howling today.
今天风刮的真凶。
I was little ill at ease.
我有点不自在。
How old is he?
他多大年纪了？