Souxite
[矿]偏水锡石
🗣️ 情景例句
I understand, Grandpa.
我能体会你， 爷爷。
In college I majored in economics, What was you major?
大学时我主修经济，你主修什么呢？
We just caught the plane
我们刚好赶上了飞机。