Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
Otherwise, they'll not be considered.
否则不予受理。
I haven't the slightest idea what you're talking about.
我一点也不知道你在说些什么。
Clusters of tin insects called aphids were to be found on the underside of the leaves.
结果在树叶背面找到成串的叫作蚜虫小虫子。