Ulcus ambulans
[医] 崩蚀性溃疡
🧩 词语组成解析
溃疡
🗣️ 情景例句
Yes, I told Daddy to pick blue ones.
是的。我告诉爸爸选蓝色的。
Who is she?
她是谁？
When we talk about the universe, we mean the earth, the sun, the moon and the stars, and the space between them.
人们谈论宇宙时，是指地球、太阳、月亮、星星以及它们存在的空间。