Baritite
硫酸钡
🗣️ 情景例句
What does John do?
John现在做什么事？
Are there any questions?
还有什么问题吗？
The purpose of my coming here is to inquire about possibilities of establishing trade relations with your company.
我此行的目的正是想探询与贵公司建立贸易关系的可能性。