Long ago it was a current belief that the earth was flat.
很久以前，人们普遍认为地球是扁的。
The current cellular structure that humanity and all life upon earth know is non-regenerative.
目前人类和地球上所有已知生命的细胞结构是不可再生的。
The current cellular structure that humanity and all life upon earth know is non-regenerative.
目前人类和地球上所有已知生命的细胞结构是不可再生的。
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