From these studies, scientists have concluded that the surface of the primitive Earth was covered with oceans containing the molecules fundamental to life.
从这些研究中，科学家们得出结论，海洋覆盖着原始地球的表面，其中含有构成生命的基本分子。
Carbonaceous chondrite planetesimals were adsorbed on the mantle surface of the primitive earth, forming primitive carbon-rich areas.
碳质球粒陨石星子被吸积于原始地球上地幔表层，形成原始富碳区。
Archaeopteryx, supposedly the oldest and most primitive bird on Earth, might not have been a bird after all, scientists say.
科学家们说，据称是地球上最古老最原始的鸟类的“始祖鸟”可能根本就不是一只鸟。
And not just man. The whole Earth was made from dust particles in orbit around the primitive sun, as were all the other solid objects in the solar system.
而且不仅仅人是尘土造的，包括地球在内的、整个太阳系的固体物质都是由环绕早期太阳的尘埃造的。
So in the center is the most primitive, and this is a genealogical chart of all life on earth.
在中心是最原始的，这是地球所有生命的系谱。
She sent her people to mate with the more primitive inhabitants of Earth, thereby giving them the capacity for wisdom.
她派遣她的人去跟地球上更加原始的人紧密接触，从而给予了他们智慧的能力。
It is the Heath. It is the primitive, primal earth, where the instinctive life heaves up.
是这荒原，原始之地，本能的生命勃发之地。
The first animals on this living sphere, the Earth, were primitive Marine animals, and then around 500 million years ago these sea animals developed shells.
在地球这个有生命的星球上，最早的动物是原始海洋动物。后来，在大约5亿年前，这些海洋动物进化成甲壳动物。
The humans upon Earth were primitive in nature, living from roots and plants in simple dwellings constructed from the local flora and fauna.
地球上的人类在本性上是纯朴的，以根茎和庄稼为生，在当地的植物和动物群落中构建简单的住所。
The humans upon Earth were primitive in nature, living from roots and plants in simple dwellings constructed from the local flora and fauna.
地球上的人类在本性上是纯朴的，以根茎和庄稼为生，在当地的植物和动物群落中构建简单的住所。
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