Callous ulcer
[医] 胼胝性溃疡, 无痛性溃疡
🧩 词语组成解析
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
What are you so upset about?
什么使你如此难过？
Who is the author of this novel?
这篇小说的作者是谁？
I would rather you came to see me now.
我宁愿你现在就来看我。