他星期二晚上在华盛顿的战略与国际研究中心对几十名贵宾、学者和援助人员讲了话。

He spoke late Tuesday at the Center for Strategic and International Studies in Washington before dozens of dignitaries, scholars and aid workers.

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但总体而言，这位提倡教育，不赞成国外援助的学者主张，数据显示，我们有理由对未来抱以希望。

Generally speaking, however, the proponent of education and a critic of foreign aid contends that the data show cause to be sanguine.

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这项由许多专家学者和援助机构通过研究给出的数据，占世界人口的七分之一左右。

That figure, given in studies by a number of think tanks and aid agencies, represents roughly one in seven of the world's population.

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