Simple ulcer
[医] 单纯溃疡
🧩 词语组成解析
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
You go first.
你先来。
When guns speak it is too late to argue.
待到炮声响，辩论已莫及。
We often call him by his nickname.
我们经常叫他的绰号。