Unsafe, overcrowded public schools, which lacked the resources necessary for education in a knowledge economy; and

公立学校不安全且过于拥挤，缺乏知识经济条件下教育所必需的资源。

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In other words, Americans understand that disparities are needed in a free-market, knowledge-based economy, but they believe those differences should be mitigated by tax policies.

换句话说，美国人明白自由市场、基于知识的经济需要贫富差距，但他们认为这种差距应当通过税收政策予以调节。

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"The most important thing in a good economy or bad is to keep expanding your skills and knowledge," she says.

她还说：“最重要的事情是，不管是好的经济时期还是坏的经济时期，都要一直扩大你的技能、扩充知识。”

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Educators say the goal will be to improve student academic performance in math, science and technology courses, while giving them the tools they need to build lasting professional careers in a 21st-century, knowledge-based economy.

VOA: standard.2010.05.10

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