我们的主要矿物燃料包括——煤，石油和汽油——他们的组成成分都包括碳，它已经在我们的地球积压了数百万年，我们现在将它使用和燃烧，让它快速的归还到大气中。
Our main fossil fuels — coal, petroleum and gasoline — are made up of carbon that has been compressed in the Earth for millions of years and we're now burning and rapidly restoring to the atmosphere.
它的主要组成成分是硫酸盐、硝酸盐、氨、氯化钠、碳、矿物粉尘和水。
The major components of PM are sulfate, nitrates, ammonia, sodium chloride, carbon, mineral dust and water.
人们这么指是因为玻璃和很多矿物质不同，它并不形成晶体，而是由构成分子随意混在一起组成，就像在液体中一样。
The reason people say this is that unlike many minerals glass isn't formed into crystals but made up of its constituent molecules all jumbled together at random as they would be in a liquid.
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