black coal

基本解释

Side of the land and the pure black coal.
这一方土地与纯黑色的煤有关。
With more than 200 years’ supply of black coal left, Australians have never much questioned this.
再有200多年澳大利亚的煤炭就开采完了，所以人们从来没有这么质疑它。
A dense black coal that takes a high polish and is used for jewelry.
黑玉，贝褐炭：一种用作宝石的很亮的深黑色碳物质。

Martin McGuinn, who took over as chief executive two years ago, is a lawyer by training and oblivious to banker's hours: He's gazing over Pittsburgh from his top-floor office by 5:30 every morning, when the three sprawling rivers below are still black as the coal buried deep in the surrounding hills.
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Originally they were derived from coal-tar, the black viscous waste product left over from distilling coal for gas.
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