The comparison shows considerable disagreement between theory and practice.

这一对比表明理论和实践之间有相当大的出入。

《牛津词典》

The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements.

其他替代方案在理论上很有吸引力，但在实践中要么不切实际，要么只能提供微不足道的改进。

youdao

The practice of shadow boxing and breath exercise is based on this theory.

太极拳和气功就是以这个理论为基础的。

youdao

We want to make sure that if the students would not to be given the time out to learn, we need to provide a vehicle or that they can take the advantage of learning in their world context to actually put the theory into practice.

为了确认学生是否会,腾出时间学习，我们需要提供一个工具,让他们在生活的情境中,利用学习,将理论用于实践。

麻省理工公开课 - 媒体、教育、市场课程节选

The trouble with the etymology of theory and the way in which the word has been used traditionally is that sometimes it actually means practice, and then at other historical periods it means something very different from practice, something typically from which practice is derived.

理论这个词在词源,和传统的使用方法上的复杂之处在于,它有时候指的是实践，但在特定的历史时期,它指的是和实践非常不同的东西，也就是实践产生的依据。

耶鲁公开课 - 文学理论导论课程节选

It reflects the contemporary intellectual preference in higher education for integrating the theory and practice of a discipline, and for reducing the divisions between vocational and academic qualifications.

ECONOMIST: Education: Degrees of choice | The

It was taught as a special subject quite distinct from the theory and practice of architecture.

UNESCO: Intangible Cultural Heritage

As the son of a Protestant theologian, I happen to be deeply versed in the theory and practice of wearing hair shirts.

WSJ: The Punishment of Winter Workouts | Golf Journal by John Paul Newport