Gingivitis ulcerosa
[医] 溃疡性龈炎
🧩 词语组成解析
n. 齿龈炎
🗣️ 情景例句
Sorry, I couldn't help overhearing, did you mention something about...
对不起，我无意中听到你们的谈话，你们是不是提到...
Can I go now?
可以走了吗？
He sat in the darkness and listened to the people around him.
他坐在黑暗处，听着周围的人在讲话。