Klaprothite
(=klaprotholite)脆硫铜铋矿
🗣️ 情景例句
What's the tuition for one year of college?
大学一年的学费是多少？
Shall we go to the cinema?
我们去看电影好吗？
It's cheaper, isn't it?
这更便宜些，是吗？