That history began with the origin of the primitive, unicellular aquatic algae of the Precambrian Eon.

最初，前寒武纪出现原始的单细胞水生藻类，除了蓝绿藻和细菌之外。

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That history began with the origin of the primitive, unicellular aquatic algae of the Precambrian Eon.

最初，前寒武纪出现原始的单细胞水生藻类，除了蓝绿藻和细菌之外。

youdao