Wallerite
墨铜矿
🗣️ 情景例句
Happiness is a personal choice.
快乐是个人的选择。
You really don't have anything to apologize for.
你真的没什么可道歉的。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难，因为常常是早晨在甲地发现那只美洲狮，晚上却在20英里外的乙地发现它的踪迹。