East Asia is witnessing the largest rural-to-urban shift of population in history.

东亚正在目睹有史以来规模最大的从乡村到城市的人口大迁移。

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Discerned from the perplexing picture of population growth the 1980 census provided, America in l970s witnessed a southwestern shift of population.

从1980年的人口普查所提供的、关于人口增长的、令人困惑的情况来看，二十世纪七十年代的美国见证了人口向西南方向的迁移。

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As the population aged, there was also a shift from the cold Rust Belt to the comforts of the Sun Belt.

随着人口的老龄化，人们也从寒冷的铁锈地带（指美国传统工业衰退的地区）转向舒适的阳光地带（指美国南部）。

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We believe that continued high levels of population growth, demographic shift and growing middle-class in Asia Pacific region will continue to offer DuPont an expanding market for its Agricultural based products over our forecast period.

FORBES: Emerging Markets Lifting DuPont Stock Up To $59

Nationwide, nonwhites are expected to become a majority of the population within a generation, and schools are at the cutting edge of that historic shift.

NPR: Instruction Of Students Learning English Bleak

And the aging of our population is an even more dramatic shift than its increasingly tan hue.

WSJ: The Evanescence of Majorities