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
Don't let me interrupt you.
别让我打搅你们。
I often have lunch at noon.
我常常在中午吃午饭。
He told me to unpack my things and then come down to dinner.
他让我打开行装后下楼吃饭。