Klaprothite
(=klaprotholite)脆硫铜铋矿
🗣️ 情景例句
I'm really excited about seeing Grandpa.
一想到要见到爷爷， 我就觉得兴奋。
A woman's work is never at an end.
妇女的活计做不完。
I'm twelve. What's your name, please?
12岁了。请问您叫什么名字？