the rationale behind
underlying rationales
provide rationales
logical rationales
A: Can you explain the rationales for this policy change?
A：你能解释一下这项政策变化背后的理由吗？
B: Certainly, there are several economic rationales for it.
B：当然，这其中有几个经济方面的依据。
1) 理由
2) 逻辑依据
3) 解释性说明
1. 理由，根据
noun
1. The fundamental reasons or logical basis for something.
Synonym: reasons, grounds, justifications