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
I enjoy camping.
我喜欢露营。
Where the sun enterd, the doctor does not.
阳光照耀处，医生就不需。
They are paid by the hour.
他们按时取酬。