The "12 traditions" is the activity principle in Alcoholic Anonymous to assure clients solidify and society relation.

“12个传统”是嗜酒者互诫协会活动的原则，是嗜酒者互诫协会坚持本会团结并与社会交往的方式。

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Apply attendee will be treat as pretermit the activity principle, if any accident the activity convener will not bear legal responsibility.

报名参加者视同默认户外活动规则，活动中如有意外活动召集人不承担任何责任；

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While designing and constructing psychological educational curriculum system, we should follow system principle, main body system, and activity principle.

在设计与建构心理教育课程体系时应遵循系统性原则、主体性原则和活动性原则。

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The regime for him is not one branch of human activity among others it is the fundamental principle or ordering principle that makes all the others even possible.

对他而言,政体并非人类活动的一个分支,而是基本的原则,或说是指导原则,使所有其它学科化作可能,这就是为何。

耶鲁公开课 - 政治哲学导论课程节选

Similarly, insignificant postsolution activity will not transform an unpatentable principle into a patentable process.

FORBES: The Federal Circuit, Not the Supreme Court, Legalized Software Patents

Phelps' principle established that initially you could get greater economic activity through inflation but that eventually people would catch on, and the medicine would lose its potency.

FORBES: Slick Solution