Mesosilicate
焦硅酸盐
🗣️ 情景例句
Christmas is coming up. Zhao Ming, let me ask you a question.
圣诞节快到了，赵明，我问你个问题。
Who will not keep a penny, shall never have many.
不积少，不会成多。
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？