Permineralization
完全矿化
🗣️ 情景例句
Who's that?
谁呀？
Please call me if you have any problems.
如果你有难题，就请打电话给我吧。
The conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop.
社会上的情况就是如此，技术是必须付钱去买的，就像在商店里要花钱买商品一样。