Pickeringite
镁明矾
🗣️ 情景例句
It's me, Grandpa.
是我， 爷爷。
The man is drawing blueprints for a new house.
这个人在设计新房屋的蓝图。
We had to queue for hours to get in and there must have been several hundred people present just before the show began.
我们不得不排了好几个小时才进得场去。在演出开始前场内肯定已有好几百人了。