Fluosilicate
[机] 氟硅酸盐
🗣️ 情景例句
He's stepped out of the office for a little while.
他离开办公室刚一会儿。
When I'm going to buy a TV set next time, I'll buy a portable model.
你有电视节目表吗？新闻与气象节目之后是什么？
No, she isn't wearing a sweater. She's wearing a white blouse.
没穿。她穿了一件白色的衬衫？