Rickardite
碲铜矿
🗣️ 情景例句
He says there's another inn
他说还有另一家旅馆，
I'm glad our negotiation has come to a successful conclusion.
我很高兴这次洽谈圆满成功。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。