Only hard knowledge, enterprising, the strongest we can play the song of youth!

只有勤奋求知、拼搏进取，我们才能奏响青春之歌的最强音！

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What is hard is getting computers to use knowledge in everyday situation.

困难的是让计算机在日常生活中使用知识。

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If the scientist has not worked hard to develop his knowledge and skills, he may not recognize that lucky breakthrough when it comes along.

如果科学家没有努力提升他的知识和技能，当幸运的突破来临之时他可能会意识不到。

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He's trying extremely hard to make an answer, and what he ends up doing is bringing that knowledge that he built up in Chicago, the knowledge that he gets from reading economics and sociology and Marxism.

他在里面倾其所学，让她明白,甚至用马克思主义,经济学和社会学中。

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And the question that preoccupies developmental psychologists is how do we come to have this knowledge, and in particular, how much of it is hard-wired, built-in, innate.

发展心理学家们所关心的问题,就是我们如何获得这些知识的,特别是,这其中有多少是固有的,内在的,天生的

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Where hard knowledge is unavailable, judgments are served up that are either unfounded or simply ludicrous.

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Though hard knowledge of the risks is scant to nonexistent, guesses by the government's mad-cow experts suggest that the average Briton is 60 times more likely to die by lightning, 750 times more likely to drown in the bathtub, 24, 000 times more likely to die playing soccer.

ECONOMIST: Tough on death, tough on the causes of death

Heavily bureaucratic, they were both staffed by former civil servants, long on sophistication and short on hard-nosed knowledge about how to make cars efficiently, and how to sell them.

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