Interstitial ulitis
[医] 间质性龈炎
🧩 词语组成解析
interstitial
[,intə'stiʃəl]
adj. 空隙的，裂缝的，形成空隙的;填隙;填隙子;
龈炎
🗣️ 情景例句
What is it?
是什么主意？
A friend is not so soon gotten as lost.
交友慢，失友快。
Oh! What a pity!
哎呀！真可惜！