His class is too
theoretical.
他的课太理论化了。
We are not only expert in
theoretical knowledge but also practical skills.
我们不仅是理论知识方面的专家，也精通于实践技能。
Theoretical speaking, the result is not possible.
从理论上讲，这个结果是不可能的。
Theoretical physics aims to develop mathematical models that explain the behavior of the universe.
理论物理学旨在建立数学模型来解释宇宙的行为。
In economics, supply and demand is a
theoretical concept used to explain market dynamics.
在经济学中，供需是一个理论概念，用于解释市场动态。
Though the theory is sound, its practical application remains untested.
尽管这个理论是合理的，但其实际应用尚未经过测试。
The teacher explained the
theoretical principles behind photosynthesis in class.
老师在课堂上解释了光合作用背后的理论原理。
Our understanding of quantum mechanics is purely
theoretical; we have yet to observe it directly.
我们对量子力学的理解完全是理论上的，我们还没有直接观察到它。
Theoretical linguistics focuses on the structure and nature of language in abstraction from its use.
理论语言学关注的是语言的结构和本质，而将其使用抽象化。
His research on genetics is highly
theoretical and has not been verified by empirical evidence.
他的遗传学研究非常理论化，尚未通过实证证据得到验证。
The psychologist proposed a new
theoretical framework for understanding human motivation.
这位心理学家提出了一种新的理论框架来理解人类的动力。
Theoretical computer science explores the limits of computation and information processing.
理论计算机科学探讨了计算和信息处理的极限。
Despite the
theoretical potential, renewable energy sources still face significant challenges in implementation.
尽管有理论上的潜力，可再生能源在实施方面仍面临重大挑战。
The first is theoretical
第一个借口是理论上的
The first year provided students with a theoretical basis for their study two years later.
第1年的学习为学生后两年的学习奠定了理论基础。