Ulcus penetrans
[医] 穿透性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
What about the bet?
那打赌的事呢？
Why are you so busy?
你为什么这样忙碌？
He could make out three men in a basket under it and one of them was holding a pair of binoculars.
他看清了气球下面有3个人呆在一只筐里，其中一个举着望远镜。