theorist

例句：

1. 1. He is a renowned theorist in the field of quantum mechanics.
   他是量子力学领域的著名理论家。
2. 2.The theorist's analysis was flawed and led to incorrect conclusions.
   这位理论家的分析有误，导致得出了错误的结论。
3. 3.Theorists often argue over the interpretation of scientific theories.
   理论家们经常就科学理论的解释进行争论。