Chalcocite
n. 辉铜矿\\n[化] 辉铜矿
🗣️ 情景例句
That idea would never work in practice.
那种设想永远实现不了。
I'll check it.
我去查一下。
In 1892 the age of mass arrivals began, during which 15 million new people passed through Ellis Island into the USA over a period of 62 years.
1892年开始了一个国外移民大量涌入的年代，在随后的62年中，有1，500万新来的人通过埃利斯岛进入美国。