Fluosilicate
[机] 氟硅酸盐
🗣️ 情景例句
Don't let us keep you from your math tutoring, Robbie.
别让我们妨碍你的数学家教， Robbie。
Please take your time.
请慢慢来。
It's a pleasure. I'll see you tomorrow.
很高兴为您效劳。明天见。