E-books now constitute 10% of total book sales, up from 1% two years ago, according to DailyFinance.

根据每日金融的说法，电子书的销量从一年前占总售书量的1%到现在的10%.

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The new laws also seek to tighten existing legislation on affirmative action, decreeing that black South Africans must constitute at least 60% of senior management by 2017, up from 26% at present.

新的法律还要求加强对现有立法的肯定行动，规定到2017年，高级经理中必须至少有60%是南非黑人，目前这一比率是26%。

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"Negotiators need to come up with, during the next week, with solid proposals that can constitute the foundation stones an agreed outcome," DE Boer said.

他说：“谈判人员需要在下个星期拿出具体的提议，为达成最终协议奠定基础。”

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"Negotiators need to come up with, during the next week, with solid proposals that can constitute the foundation stones an agreed outcome,"

VOA: standard.2009.12.09

Trans fatty acids constitute up to 60 percent of the fat in processed foods containing hydrogenated fats.

CNN: What's your cholesterol IQ?

The most recent survey of what 18- year-olds are up to in Britain could not find enough unemployed Indians to constitute a meaningful sample.

ECONOMIST: Britain and India

Clumsy fliers spilling Diet Coke and coffee on plane floors and seats, causing "gunked-up" seat-locking mechanisms, hardly seem to constitute a root cause.

CNN: How would you save American Airlines?