Indirect collaboration is the key principle behind information-sharing websites, just as it underlies the complex constructions that termites build.

间接协作是信息共享网站背后的关键原则，就像它是白蚁构建的复杂结构的基础一样。

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Respect is a key principle of football.

尊重是足球的一个重要原则。

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The key principle behind Knol is authorship.

Google Knol的核心理念是突出作者。

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In a help session what he might do typically is solve between four and eight problems that illustrate the key principle being talked that week.

在帮助课程中他一般会,解决4到8个问题,来阐明那一周教的关键原理。

麻省理工公开课 - 媒体、教育、市场课程节选

The mix of genders is a key principle, according to the group's Web site.

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You know, there's a balance that can be struck, and the key principle is sustainability.

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The key principle is that the cards are using electronic networks to make payments.

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