Silice
二氧化硅
🗣️ 情景例句
Please accept my apologies for any trouble my mistake has caused you.
因为我的失误给你添麻烦了，请接受我的道歉。
Do you have a book?
你有一本书吗？
Antique shops exert a peculiar fascination on a great many people.
古玩店对许多人来说有一种特殊的魅力。