As the first decade of the 21st century comes to a close, what have we as a species done to help protect this planet we call home?

在21世纪第一个十年快到来的时候，作为一种物种的我们，应该为帮助保护这个被我们称作“家”的星球做些什么。

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This price rise comes at a time when enrolment is falling; for American mid-level schools it is down 20% over the decade.

学费上涨出现在入学人数下降的时候，对美国中等水平的学校来说，过去十年内，入学人数下降了20%。

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For financial markets and central bankers the retro theme comes from a different, less pleasant, decade.

但对整个金融市场和央行而言，这股复古之风却来自另一个不那么令人喜欢的年代。

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Experience has made Ms. Harris a staunch adherent of the five-year doctrine: From one really good performance comes the next half decade of gainful employment.

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The vote comes after a decade of rule by Carlos Menem, a rumbustious Peronist who turned into one of Latin America's firmest free-market reformers.

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But now, for the second time in a little over a decade, a little blue pill comes to the rescue of humanity.

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