1·The area has been mined for slate for centuries.
这个地区开采板岩有数百年了。
—— 《牛津词典》
2·They mined the rock, artificially break it down and put the Phosphorus into agricultural fertilizers.
他们开采岩石，人工把它分解，然后把磷放进农业肥料里。
3·The pit is being shut down because it no longer has enough coal that can be mined economically.
那个煤矿要关闭了，因为储量不足，难以经济开采。
—— 《柯林斯英汉双解大词典》
4·The ruby and jadite had not yet been mined.
红宝石和硬玉那时还没有被开采。
5·Australia's first coal was mined at Newcastle in 1797, less than a decade after Europeans began to settle.
澳大利亚的第一座煤矿于1797年在纽卡斯尔开采，是欧洲人在此定居不到十年之后。