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- Xenon is extremely rare, which allows scientists to use it to detect and trace nuclear reactions, even those that occurred in primitive meteorites before the solar system came into existence. 氙非常稀有，因此科学家能利用它来侦测及追踪核反应，即使是那些早在太阳系形成之前、生在原始陨石中的核反应。
- His art is primitive and provincial. 他的艺术原始而粗野。
- Primitive people often lived in caves. 原始人常常住在山洞里。
- Primitive peoples deified the sun. 原始部落将太阳奉为神。
- They built a primitive shelter out of tree trunks. 他们用一些树干建造了一个简陋的棚子。
- Primitive man made tools from sharp stones and animal bones. 原始人用尖石块和动物的骨制造工具。
- A primitive hand-turned grain mill. 手推磨一种原始的手推碾谷磨
- The book is about the mythologies of primitive races. 这本书是原始民族神话集。
- Primitive in culture and customs; uncivilized. 野蛮的，未开化的文化和习惯原始的; 不文明的
- Small seashells were often used as a primitive kind of money. 小贝壳常被用作简单的货币。
- Living conditions in the camp were pretty primitive. 营地的生活条件甚为原始。
- A stony meteorite that contains no chondrules. 无球粒陨石
- He will publish his observation on the social life of these primitive tribe. 他将公布他对那些原始部落的社会生活观察所得的资料。
- There's a meteorite that hit the ground near here. 附近有颗流星刚掉下来
- A piece of flint used as a tool by primitive human beings. 打火石原始人作为工具用的一块打火石
- ANCIENT METEORITE CRATER IN TARIM BASIN. 塔里木盆地的古陨石坑。
- The constitution of a primitive society is not necessarily simple. 原始社会的结构并不一定就是简单的。
- Living conditions in the village are still quite primitive. 这个村子的生活条件仍然很原始。
- He discovered an unusual meteorite. 他发现了一块奇异的陨石。
- The meteorite might have caused a huge dust cloud. 陨星可引起巨大的尘埃云。
