William Ruddiman 科学家威廉·拉迪曼 ; 鲁迪曼
Bill Ruddiman 天气学家比尔鲁德曼
Dr Ruddiman argues that such an assumption is tantamount to suggesting that farmers have learned nothing in the past 5,000 years.
鲁丁曼博士还反驳到，这种假设相当于暗示在过去5000年里农民们一无所获。
youdao
In two-thousand three, American William Ruddiman first proposed that global warming resulted from human activities thousands of years ago.
VOA: special.2011.04.26
But Professor Ruddiman believes he is right, and so do the Swiss researchers.
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