Cementocyte
牙骨质细胞
🗣️ 情景例句
What classes are mandatory for your major?
你的专业什么课是必修的？
If you run after two heares, you will catch neither.
两头落空。
Merry Christmas and best wishes for the New Year!
圣诞快乐，并致以新年的良好祝愿！