Retrometamorphism
退向变质作用
🗣️ 情景例句
It is.
是的。
As soon goes the young lamb's skin to the market as the old ewe's.
老羊皮上了市，小羊皮也跟着来。
It's the library's. Please be more careful from now on!
“是图书馆的书。从现在起请你倍加小心！”