rationale

名词 rationale:

1. (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)
   同义词：principle

1. I do not understand the rationale behind the decision to sell the warehouse.
   我不明白在出售仓库的决定后面有什么原由。

ra.tion.ale

n.（名词）
Fundamental reasons; the basis.
根本原因；最基本的原因；基础
An exposition of principles or reasons.
解释：对原则和理由的表达

来源：
Late Latin ratiôn3le
后期拉丁语 ratiôn3le
from neuter of Latin ratiôn3lis [rational] * see rational
源自 拉丁语 ratiôn3lis的中性词 [理性的] *参见 rational