Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
Now, I appreciate your offer,
因此， 我感激你的提议。
The restaurant is on the second floor.
那餐厅在二楼。
Will you travel by sea or air?
你们乘船去，还是乘飞机去？