Jefferisite
水蛭石
🗣️ 情景例句
Some think that all's fair in business.
一些人以为商界的一切都是公平的。
In college I majored in science.What was your major?
在学院我主修了自然科学，你主修了什么？
We also want to teach all the children to perform.
我们还想教会所有的儿童演奏。