研究人员认为，这或许可以解释为什么印加文明在那几个世纪中得到了扩张。
That may explain the Inca civilization's expansion during those centuries, researchers suggest.
她正在研究文明起源的迹象。
She is doing research into evidence of the origins of civilization.
这是一种以探究人类文明如何起作用为目的的研究。
This is a type of research aimed at exploring the way human cultures work.
书信是研究古代两河流域文明的重要文献。
Correspondence is an important material to the study of ancient Mesopotamian civilization.
他一直专心于研究文明史。
文章从社会理念、制度设计和社会现状三个方面对美国的制度文明进行了研究。
A is discussed in three aspects from social opinion, system design to social actuality.
文章从社会理念、制度设计和社会现状三个方面对美国的制度文明进行了研究。
A is discussed in three aspects from social opinion, system design to social actuality.
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