Wittichenite
脆硫铜铋矿, 硫铋铜矿
🗣️ 情景例句
I really must be going now.
现在我真的该告辞了。
Pouring oil on the fire is no way to quench it.
加油不是灭火法。
When they arrived, he said: Welcome to our factory! Please come this way. Don't rush.
“欢迎参观我们厂！请走这边。别急。”