Ulcus exedens
[医] 侵蚀性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
And you didn't exercise?
你没有参加健身操？
I know the boy whose father is a college president.
我知道那个男孩的父亲是大学校长。
My name is Sun Huimin.
我叫孙辉民。