Simple gingivitis
[医] 单纯性龈炎
🧩 词语组成解析
n. 齿龈炎
🗣️ 情景例句
Grandpa really loves his family, doesn't he?
爷爷确实很爱这个家， 是吗？
I don't buy it.
我才不信邪。
He dreaded having to spend Christmas in hospital.
他十分害怕在医院过圣诞。