Gordonite
磷镁铝矿
🗣️ 情景例句
My favorite non-work activity is …
我业余时间最喜欢做的就是跳舞。
The classes are interesting, and the teachers are good.
那些课很有趣，老师又好。
When you have found a building in which to start your school.
你找到开办学校的楼房后