A series of discoveries and studies on ancient life forms in the 20th century demonstrated that Cambrian was a geological period full of the wildest imagination.
20世纪古生物的一系列发现和研究，证明了寒武纪是一个最能激发人们想象力的地质时代。
A series of discoveries and studies on ancient life forms in the 20th century demonstrated that Cambrian was a geological period full of the wildest imagination.
20世纪古生物的一系列发现和研究，证明了寒武纪是一个最能激发人们想象力的地质时代。
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