Pma.
[医] 龈炎发病率(P为乳头,M为龈缘,A为龈附丽)
🗣️ 情景例句
and pleased to be living with the family.
乐于跟家人住在一起。
May I borrow your umbrella?
我能借你的雨伞吗？
I'll be glad to do it.
我乐意为你们介绍。