The Ediacaran fauna were the first large complex life forms to appear.

埃迪·卡拉纪动物群是出现的第一种大型的结构复杂的生命形式。

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The Ediacaran fauna were the first large complex life forms to appear.

埃迪·卡拉纪动物群是出现的第一种大型的结构复杂的生命形式。

youdao