Orthosilicate
正硅酸盐
🗣️ 情景例句
We'll come upstairs and get you in a little while.
我们待会儿就上楼来带你下去。
That's quite all right.
没关系。
Captain Ben Fawcett has bought an unusual taxi and has begun a new service.
本。弗西特机长买了一辆不同寻常的出租汽车，并开始了一项新的业务。