Chalcocite
n. 辉铜矿\\n[化] 辉铜矿
🗣️ 情景例句
You'd better hurry, Robbie.
你最好快点， Robbie。
May I see a timetable?
我可以看时刻表吗？
Insuring public or private property is a standard practice in most countries in the world.
承办公共财产或私人财产保险是世界上大部分国家的正常业务。