Ulcerations
(ulceration 的复数) n. 溃疡\\n[医] 溃疡形成; 溃疡
🗣️ 情景例句
It was a gradual process, involving many factors.
这是个渐进的过程，涉及到方方面面。
She's been living there since her birth.
她生下来就住那儿。
The Moon is likely to become the industrial hub of the Solar System,
月球很可能成为太阳系的工业中心。