Ulcus cancrosum
[医] 癌性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
I'm extremely sorry for the delay.
对此延误，我深感抱歉。
Did the chicken come before the egg?
先有鸡还是先有蛋？
Excuse me. Is there a station near here?
请问，附近有车站吗？