That closed communication comes at the expense of public knowledge sharing, but classroom innovators may not be able to have it both ways in the long term.

不过这种封闭的交流是以牺牲公共知识的分享为代价的，不过长远来看，课堂里的创新者们不能总是两全其美的。

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This is a move toward being more closed, though Google is positioning it as a strategy to help make the web more open in the long-term.

这项决定让Google更加封闭，尽管Google只是用它作为一种让互联网长远来看更加开发的策略。

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China, by far the biggest source of new raw-material orders, closed many factories during the Olympics, muddying the latest data, and analysts say it could be months before long-term trends are clear.

中国目前是原材料新增出口的最大市场，该国在奥运会期间关闭了很多工厂，从而影响了近期经济数据的准确性，分析师说，可能要几个月后才能看清经济增长的长期趋势。

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Whether the long-term deficit is closed ultimately by raising taxes or cutting benefits, that will mean the effective rate of return from the program will be lower, ultimately falling into the negative range for everyone.

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And the markets need to recognize that long-term creative arbitrage projects involving open or closed communities, tackling large economic challenges across the globe, are one of the few ways the surplus capital problem can be solved.

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After the markets closed Monday, Fitch Ratings downgraded AIG's long-term and short-term issuer default rating, as well as its senior unsecured debt and commercial paper program ratings.

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