Fluorbaryt
荧石
🗣️ 情景例句
I have a new puppy and he has an excellent temperament.
我有只新的小狗，它的脾气很好。
You know that some countries are selling this kind of products at cheap prices in large quantities.
您知道有的国家对这种商品正在削价抛售。
Municipalities naturally want to secure the campers' site fees and other custom.
市政当局当然希望获得露营者的场地费和其他光临的好处，