Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
I've always tried not to interfere in your affairs.
我总是尽量不干涉你的事情。
It seems he's disappointed.
看起来他好像很失望。
and often are foolish enough to let the adolescents see that they are annoyed.
而且愚蠢地让孩子看出自己的烦恼。