Chalcophyllite
云母铜矿
🗣️ 情景例句
No, I haven't. Would you show me where that is?
不，没去过。你可以告诉我去哪里吗？
It is better to be safe than sorry.
事后追悔不如事前稳妥。
They represent the prices for different quantities.
那表示不同的量有不同的价钱。