Lopezite
铬钾矿
🗣️ 情景例句
This is the last chance you can get up to 60 percent discount.
这是您可以得到6折的最后机会。
I know the boy whose father is a policeman.
我知道那个男孩的父亲是警察。
We are good friends.
我们是好朋友。