Pickeringite
镁明矾
🗣️ 情景例句
You didn't put film in the camera, silly!
笨蛋，摄影机里没有放胶卷。
We've booked a Western-style room for you.
我们已为你订了一间西式的房间。
Our vicar is always raising money for one cause or another,
我们教区的牧师总是为各种各样的事筹集资金。