Polysilicate
聚硅酸盐
🗣️ 情景例句
It's a serious matter for a lot of us.
对我们许多人来说这可是个严重的问题。
Hoist your sail when the wind is fair.
随机应变。
Has it got anything to do with your present research?
报告跟你目前的研究有关吗？