威廉·默多克在18世纪90年代受到煤炭的易得性的启发，发明了1500年里的第一种新的夜间照明方式。
The ready availability of coal inspired William Murdoch during the 1790s to develop the first new form of nighttime illumination to be discovered in a millennium and a half.
那个时候英国的煤炭确实已经所剩无几，但一个半世纪后的今天，全世界未开发的煤炭仍可用数百年。
Britain's coal has indeed been depleted, but a century and a half later, there are still hundreds of years worth of coal yet untapped worldwide.
石油和煤炭等自然资源也是直到二十世纪才被发现。
And resources such as oil and coal weren't discovered there until the 20th century.
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