Wittichenite
脆硫銅鉍礦, 硫鉍銅礦
??? 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大學的新生注冊主任。
It's wonderful! It's terrific!
棒極了。
There are also other varieties that do not live in groups at all.
還有別的類型的蜂，它們全然不過群體生活。