For anyone interested in evolution-which is to say, for anyone interested in the scientific understanding of the world-2009 marks two major, linked anniversaries. It is 200 years since the birth of Charles Darwin and 150 years since the publication of his masterwork, On the Origin of Species. Anniversaries are, by their very nature, arbitrary events. (Does 50 years of marriage really feel that much different from 49.7 years?) They become noteworthy only when the act of looking backward reveals something significant about where we are today. By that standard, the double Darwin anniversaries are truly special.
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机译：对于任何对进化感兴趣的人，也就是说，对任何对科学世界的理解感兴趣的人，2009年都是两个重要的，相互关联的周年。距查尔斯·达尔文（Charles Darwin）出生200周年，距其杰作《物种起源》（On the Species of Species）150周年。从本质上讲，周年是任意事件。 （结婚50年真的和49.7年有很大不同吗？）只有当向后看的行为揭示了我们今天所处的重要位置时，它们才变得值得注意。按照这个标准，达尔文的双周年纪念确实很特别。
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