Aphthobullous stomatitis
[医] 口疮大疱性口炎, 口蹄疫
🧩 词语组成解析
n. 口腔炎\\n[医] 口炎
🗣️ 情景例句
Oh, I'm so sorry.
噢， 我真难过。
I don't know where I've seen him before.
我不晓得在哪儿见过他。
He began his diet a week ago.
他是一星期前开始节食的。