Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
I haven't had a minute to relax all day.
我今天连一分钟都没休息。
Would you ming calling her sometime?
你可以找个时间打电话给她吗？
I'll have to stay at the office.I don't know when I'll finish.
我不得不留在办公室，不知道什么时候才能结束。