Chronic necrotic gingivitis
[医] 慢性坏死性龈炎
🧩 词语组成解析
a. 坏死的, 枯斑的\\n[医] 坏死的
n. 齿龈炎
🗣️ 情景例句
Absolutely.
可不是。
He that sups with the devil must have a long spoon.
与恶人交往，须特别提防。
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？