Polycrase
(=polycrasite)[矿]复稀金矿, 锗铀钇矿石
🗣️ 情景例句
Littering is a serious offense in some countries.
乱扔垃圾在某些国家是严重的违法。
I don't believe he will get to the station on time.
我不相信他会准时到车站。
It's time to tell her the truth.
是该告诉她真相的时候了。