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
Can you give me a hand with my homework?
你能帮忙教我做家庭作业吗？
It's cloudy this afternoon.
今天下午云很多。
The third person who lit a match started the fire.
第三个工人擦亮一根火柴就引发了火灾。