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Mine
矿井
People get different kinds of materials from different mines.
人们从不同的矿井中得到不同的矿物材料。
Gold comes from a gold mine.
黄金产自金矿。
Copper comes from a copper mine.
铜产自铜矿。
And coal comes from a coal mine.
煤产自煤矿。
When people think of mines, they imagine a big mountain.
当人们想起矿井时，他们会想到一座大山。
However, some people find a big mine under the sea.
然而，有的人会在海底发现大矿井。
What is the oldest mine in history.
历史上最古老的矿井是哪个呢？
It is "Lion Cavern" in Southern Africa.
它就是非洲南部的“Lion Cavern”。
It is about 43,000 years old.
它约有43000年的历史。
