BBC Africa analyst Martin Plaut says this marks a considerable change in policy from Washington.

BBC的非洲分析员Martin Plaut说这意味着华盛顿政策正在发生转变。

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"We have mapped the whole area with a high density of coverage," Plaut said. "These are not isolated features."

“我们已经对整个区域进行了高密度的全覆盖式绘图，”Plaut说，“但我们并没有把该区域孤立出来。”

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In addition to attractiveness, Plaut said other traits such as intelligence and personality might also cement social connections.

普劳特说，除了吸引力之外，诸如聪慧度和个性等特质可能也能巩固一个人的社会联系。

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Professor Plaut believes the systems will appeal especially to the next generation of farmers.

VOA: special.2009.05.12

Karen Plaut heads the Department of Animal Science at Michigan State University.

VOA: special.2009.05.12

The BBC's Africa analyst Martin Plaut says the statement carries an air of desperation.

BBC: MDC seeks new Zimbabwe election

The BBC's Africa analyst Martin Plaut says the ANC leader is still something of an enigma - part Zulu traditionalist, part international leader who jets around the world.

BBC: ANC heads for two-thirds of vote