According to foreign media reported that the survey was conducted by American sociologists in 2006 triggered a study.

据国外媒体报道称，这项调查是由美国社会学家2006年的一项研究引发的。

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American sociologists believe that high-tech push in 1985 to a trend: Americans are increasingly isolated, and their social circle is shrinking.

美国社会学家认为，高科技推动了1985年来的一个趋势：美国人越来越孤独了，他们的社交圈子在缩小。

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The research comes from sociologists and psychologists from three North American universities who have examined statistics from a group of individuals over a 32-year period.

来自美国北部三所大学的社会学家和心理学家们在32年的时间里调查了一组个体的数量。

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In the past ten years, obedient to the findings of urban sociologists, American cities have tripped over themselves vying for young, creative people.

ECONOMIST: Age and Californian cities