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
you've made a very strong impression
你已经留下了非常深刻的印象
Hasty climbers have sudden falls.
大起者有大落。
Take care!
保重！