Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
Tonight's a problem. What about tomorrow night?
今晚不行，明晚怎样？
I met one of the announcers over at the television station.
我在电视公司遇到一位播音员。
Oh, dear! said Miss Yang. Are you sure you've lost it?
“哎呀！”杨小姐说，“你肯定你弄丢了？”