Silice
二氧化硅
🗣️ 情景例句
I'm sorry you can't come with us, Susan.
很遗憾你不能同我们一起去， Susan。
Fair and softly go far in a day.
谦和稳重，前程远大。
He called out to the children and threw the ball back to the bank.
他大声叫着那些孩子，把球扔回到岸上。