| 单词 | 天然矿 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔asphaltite〕A solid, dark-colored complex of hydrocarbons found in natural veins and deposits.沥青岩：天然矿脉和矿藏中的黑色固体碳氢化合物美国传统〔asphalt〕A brownish-black solid or semisolid mixture of bitumens obtained from native deposits or as a petroleum byproduct, used in paving, roofing, and waterproofing.沥青，柏油：一种黑褐色固体或半固体沥青混合物，采自天然矿藏或是石油的副产品，用于铺路，封屋顶和防水美国传统〔impurity〕All natural minerals contain impurities.凡天然矿物都含有杂质。朗文当代〔rock〕A naturally formed aggregate of mineral matter constituting a significant part of the earth's crust.聚合体：构成地壳重要组成部分的天然矿物的聚合体美国传统〔rock〕Relatively hard, naturally formed mineral or petrified matter; stone.岩石，岩：相对坚硬的天然矿物或石化物质；石块（岩块）美国传统 |
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