Change is the activity of knowledge from within.

而变化是内心知识的实践活动。

youdao

The main aim of this activity is to improve our school members' knowledge about the importance of exercise.

这次活动的主要目的是提高我们学校成员对运动重要性的认识。

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Intranets, for example, can be greatly enhanced by knowledge of social activity within a company, or between companies.

例如，企业内部网可以由于公司内或公司间的社交活动知识而得到大大增强。

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The activity contributes to reducing sexual transmission of HIV and empowering young people and other citizens with knowledge and skills to protect themselves from new HIV infections.

UNESCO: MEDIA SERVICES

When the last transit occurred the intellectual world was awakening from the slumber of ages, and that wondrous scientific activity, which has led to our present advanced knowledge, was just beginning.

CNN: A transit of Venus, an age of wondrous science

The Times Higher Education World University Rankings employ 13 separate performance indicators, which it says makes it the only world rankings to examine all the core missions of the modern global university - research, teaching, knowledge transfer and international activity.

BBC: Glasgow University