Gingivostomatitis
[医] 龈口炎
🗣️ 情景例句
Please, sit down. What can I do for you?
请坐下。我能为你们做什么呢？
I know the boy whose father is a guide.
我知道那个男孩的父亲是导游。
Rubbish, however, is only part of the problem of polluting our planet.
然而，垃圾只是我们这个星球的污染问题的一个方面。