Geraesite
杂磷钡铝石
🗣️ 情景例句
We'll tell you the big surprise.
我来告诉你们这个大惊喜。
The postman always comes at 2 o'clock.
邮递员总是在2点钟来。
If we buy the smaller one, the IBM PC386, we might have to change it in a few years' time for a bigger one.
如果我们买一台较小的IBM386的话，过几年可能就得换一台较大的机子。