Individnalization physical education is based on solid theory.

个性化体育教育具有坚实的理论基础。

youdao

I have four years study in the Department of Mechanical Engineering and it has given me a solid theory foundation.

我在机械工程系学了4年，这为我的理论水平打下了坚实的基础。

youdao

Zhang Qian, got her Bachelor's degree of Law School of Yunan University, and finance as minor. She has solid theory grounding of law.

本所合伙人，毕业于云南大学法学院，获法学学士，辅修金融专业，法律功底深厚，见解独到，工作认真。

youdao

But the more solid theory is that it's sort of like a societal reaction.

NPR: Can Botox Treat Depression Along with Wrinkles?

In this view it is necessary to know, or to have a solid theory of how HR inputs are transformed into business outcomes, and to be able to provide control, training, and monitoring.

FORBES: HR Analytics And Competitive Advantage

But the policymakers who swallow these simulations have little way of knowing what is driving the results: is it deep theory, solid data, or arbitrary pruning?

ECONOMIST: Economic models