Montmorillonitestructure
朦脱石结构
🗣️ 情景例句
I don't mind what you do.
你干什么事我都不在乎。
How much is that?
那个多少钱？
both men were genuinely sorry that they had to leave.
这二位不得不离开那个荒岛时，还真的感到遗憾呢！