Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
You screwed up.
你搞糟了。
Where did you visit?
你去参观了哪些地方？
The picnic basket was no longer under the tree.
树下的野餐篮不见了。