Cementocyte
牙骨质细胞
🗣️ 情景例句
I'm sorry, Alexandra.
我为你难过 Alexandra。
Sickness is felt, but health not at all.
疾病能够感觉到，健康全然不知晓。
People travelling long distances frequently have to decide whether they would prefer to go by land, sea, or air.
出远门的人常常需要决定是走旱路、水路，还是坐飞机。