经过数千年的文明演变，这颗星球完全被都市和城区所覆盖。
Over thousands of years of civilization, the planet has been entirely enveloped by cityscapes and urban sprawl.
三星堆文明的神秘消失，古环境演变应是重要原因，与全球性古气候环境变化直接相关。
The mysterious disappearance of Sanxingdui civilization site, resulting from the evolution of palaeoclimate, is closely related to the change of global ancient climate.
进入文明社会以后，人类两性关系从群婚杂交演变为一夫一妻制。
After entering the society of civilization, the relations of the male and female have evolved from crossbred of mating group to the monogamy.
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