Perfrating ulcer
[医] 穿孔性溃疡, 穿通性溃疡
🧩 词语组成解析
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
is tomorrow morning at ten o'clock.
明天早上十点。
Do you think you could keep the noise down?
你看能不能小声一些？
but he was in such a bedraggled condition than an assistant refused to serve him.
但店员见他浑身泥水的样子，竟不肯接待他。