Fluosilicate
[机] 氟硅酸盐
🗣️ 情景例句
I'm your mother.
我是你母亲。
Would you please hold the door open for me?
请您为我打开门？
Yes, London. The whole family's going for two months.
对，我们住在伦敦。我们全家打算住两个月。