Bisilicate
二硅酸盐, 偏硅酸盐
🗣️ 情景例句
and I promised to have lunch with both of them today.
我答应今天和他们共进午餐。
Sorry, it's broken. You have to use the stairs.
对不起，它坏了，你只能走楼梯了。
The moon travels round the earth.
月球绕着地球运行。