Gingiva propria
[医] 龈本部
🧩 词语组成解析
n. 齿龈
固有层
🗣️ 情景例句
I don't mind what you do.
你干什么事我都不在乎。
The devil knows may things because he is old.
老马能识途。
I waited by the kitchen door.
我在厨房门旁等着。