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来源:雅诚德英语网
The permafrost contains immense amounts of frozen organic 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。
The permafrost contains immense amounts of frozen organic 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。