The theory is based on practice.

理论建立在实践的基础上。

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It's ideal to have one's theory based on practice.

理想的是把理论建立在实践的基础上。

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Theory study must be based on practice and service for practice.

理论研究工作必须立足于实践，并为实践服务。

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Societies, based on shame,as opposed to those that practice guilt; guilt is something very internal and personal.

即基于羞耻心的社会,和基于内疚感的社会相对,内疚感是非常内在的,私人的

耶鲁公开课 - 古希腊历史简介课程节选

There is snobbery within law firms based on practice group.

FORBES: What's It Like To Work At An Ultra Elite Law Firm?

The shinkansen was not experimental: it was a carefully thought out scheme based on established practice.

ECONOMIST: Hideo Shima

The program is based on best practice in online adult learning and is ideally suited to scaling and expanding our reach to beginning teachers.

FORBES: To Transform the U.S. Education System, Focus on Teacher Effectiveness