Acellular cementum
[医] 无细胞牙骨质
🧩 词语组成解析
a. 非细胞的,非细胞组成的
n. 牙骨质, 水门汀
🗣️ 情景例句
My day was just fine.
这一天还好。
I'm not rich. I wish I didn't have to pay the fine.
我不是富有人家，但愿不必交罚款。
Looking up I saw that we were surrounded by children in rags who were looking at us silently as we ate.
我抬头一看，发现我们被一群衣衫褴褛的小孩团团围住了，他们在默不作声地看着我们吃饭。