Fluosilicate
[机] 氟硅酸盐
🗣️ 情景例句
Have yo ever been to Teem Plaza?
你到过天河城吗？
What is the total circulation of this newspaper.
这家报纸总发行量多少？
Hello! Could I speak to the headmaster, please?
您好！我能和校长通话吗？