Cementum canaliculi
[医] 牙骨质小管
🧩 词语组成解析
n. 牙骨质, 水门汀
[医]（单canaliculus）小管
🗣️ 情景例句
It was so stupid of me. I really do apologize.
非常抱歉， 我当时真糊涂。
I asked him to pay, but he wouldn't.
我请他付账，但是他不肯。
I lost the door key about here.
我在这附近掉了门钥匙。