Fauserite
七水锰矾, 锰泻利盐
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
We'll pack the goods according to your instruction.
我们将按你方的要求进行包装。
Do you know what time the film begins?
你知道电影何时开始？