For centuries Oxford has been at Britain's intellectual heart, perhaps the most prestigious among Europe's many ancient universities.

几个世纪以来，牛津大学一直是英国知识分子的中心，它或许是欧洲众多古老大学中最负盛名的。

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Here is what we found: of the hundreds of self-change techniques that have been suggested over the centuries, perhaps only a dozen are distinctly different.

我们的发现结果如下：在几个世纪以来人们提出的几百种改变自我的方法中，也许仅有十来种与其他方法截然不同。

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Reconstructions based on these tend to show that the planet’s temperature has risen over the 20th century to heights unprecedented for centuries and perhaps millennia.

基于这些研究重建的气候，它们趋向于显示地球的温度在过去的20世纪中升到了几个世纪，甚至几百万年以来前所未有的高度。

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They are the Navajo - whose ancestors walked that land at least a century, perhaps many centuries, before the first Europeans arrived.

VOA: standard.2010.03.22

Perhaps if Francis Xavier had come to Japan four centuries later, and had the opportunity to experience Aoyama's masterpieces, he would have better understood the spirit of sho if not the "devil's language" it transforms.

WSJ: The Vision and Calligraphy of Aoyama San'u | Tokyo National Museum | Transformational Characters | By Michael Judge

"For the past two centuries, we have forged a nation by emphasizing our common beliefs, our common ideals and, perhaps most important ... our common language, " Solomon said on the House floor.

CNN: House Approves Ballot On Puerto Rico's Status