Tetrasilicate
四硅酸盐
🗣️ 情景例句
Everything we're discussed seem to be here.
我们讨论过的每样事情似乎都在这里。
For ￡300 to London, the commiossion is 3, please.
汇款300英镑到伦敦，费用为3英镑。
You'd better let her alone.
你们最好是让她一个人呆会儿。