The permafrost contains immense amounts of frozen anic matter that have been accumulating for millennia.

永久冻土层经过千万年的累积形成，其中包含了巨量的冻僵的有机物。

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The permafrost contains immense amounts of frozen anic matter that have been accumulating for millennia.

永久冻土层经过千万年的累积形成，其中包含了巨量的冻僵的有机物。

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