Nlceromembranous gingivitis
[医] 溃疡假膜性龈炎, 坏死溃疡性龈炎
🧩 词语组成解析
n. 齿龈炎
🗣️ 情景例句
What happened?
怎么啦？
I am at leisure now.
我现在有空。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，