That shift, in turn, place an unprecedented premium on "knowledge workers", a new class of wealthy, educated, and mobile people who view themselves as free agents in a seller's market.

反过来，这种转变又给“知识工人”带来了前所未有的好处，这是一个新的阶层，由富有、受过教育、流动性强的人组成，他们认为自己是卖方市场上的自由代理人。

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The shift could be as simple as creating a single class to represent our actor, as shown in Figure 4.

这个转变可能就像创建一个类来表示参与者那样简单，如图4所示。

youdao

In another sense the shift is more fundamental since it opens up a whole new class of (probably) non-equivalent problems.

从另一种角度来看，这种转变更为重要，因为这使全新的一类(有可能)没有替代物的问题开始出现了。

youdao

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

The FDP plan would mark a decided shift toward a "two-class health-care system, " warns Gerd Glaeske, director of health economics and policy at the University of Bremen's Center for Social Policy Research.

WSJ: Germany Strains to Fund Health Care for All

In December workers at Mercedes's Sindelfingen factory near Stuttgart went on strike after the company said it would shift production of its C-Class cars to Alabama, so Mercedes promised to maintain employment at the plant until 2020.

ECONOMIST: How Germany weathered the recession