'we were stunned,' says Gerald Echterhoff, of Jacobs University Bremen, Germany, who led the research.

‘我们很吃惊，’主导这个研究的德国不来梅国际大学的杰纳瑞德·艾切赫夫说。

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Now Charles Robert of the University of Bremen, Germany, and colleagues think they have an answer.

德国不莱梅大学的查尔斯·罗伯特和他的同事们认为他们得出了一种答案。

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In big cities they crowd together and go to schools from which native German children have fled, making it harder to integrate, says Stefan Luft, a scholar at the University of Bremen.

不莱梅大学的学者Stefan Luft说，在大城市里，移民的孩子们聚集在没有德国本地孩子的地方，然后去学校，这就使移民的孩子和德国本地的孩子很难融合在一起。

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That is an implication of unpublished research using macaque monkeys by Doris Tsao and Winrich Freiwald, of the University of Bremen, in Germany.

ECONOMIST: Facial characteristics

Not so, says Lothar Probst of the University of Bremen.

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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.

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