Nothing like a complete picture of the origin of the earth has been devised.
关于地球起源，尚未提出一个完善的图景。
Nothing like a complete picture of the origin of the earth has been devised .
关于地球起源，尚未提出一个完善的图景。
Geology: the scientific study of the origin, history, and structure of the earth.
地质学对地球起源、历史和结构的科学研究。
Geology: the scientific study of the origin, history, and structure of the earth.
地质学对地球起源、历史和结构的科学研究。
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