Gingivitis ulcerosa
[医] 溃疡性龈炎
🧩 词语组成解析
n. 齿龈炎
🗣️ 情景例句
In what aisle can I find the ...?
我在哪排能找到……？
He gave a lecture on agriculture.
他作了一个关于农业的讲座。
He wore a small black hat, very wide trousers, a moustache and carried a stick that he swung in the air as he walked.
他头戴一顶小黑帽，身穿一条非常宽大的裤子，嘴上留着小胡子，手提着一根他边走边在空中挥舞的手杖。