Crombie's ulcer
[医] 后龈区溃疡(见于口炎性腹泻)
🧩 词语组成解析
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
It is special. Happy anniversary.
确实很特别。结婚周年快乐！
Riff raff!
痞子！
There are many stars in the sky.
天上有很多星星。