理论家

例句：

1. 1. He is a renowned theoristin the field of quantum physics.
   他在量子物理学领域是一位著名的理论家。
2. 2.Theorists often spend hours analyzing complextheories.
   理论家们经常花几个小时来分析复杂的理论。
3. 3. His research has greatly advancedour understanding of the theory of relativity.
   他的研究极大地推进了我们对相对论的理解。