Intraepithelial
a. 上皮内的
🗣️ 情景例句
There's no doubt about that.
此事确定无疑。
Shooting star
流星
The city at one time must have been prosperous, for it enjoyed a high level of civilization.
这座古城肯定一度很繁荣，因为它曾享有高度的文明，