来自 rational,合理的，经过思考的，-ale,名词后缀。

1. However, the rationale for such in-itiatives is not, of course, solely economic.

然而，这种提议的根据当然并不仅仅是经济方面的。

2. The rationale of reprocessing spent nuclear fuel is inevitably being questioned.

对核废料进行再加工的理由不可避免地受到了质疑。

3. What is the rationale behind these new exams?

这些新测试的理论依据是什么？

4. The plan was criticized for its lack of rationale.

该计划因缺乏根据而遭到批评.

5. A great scholar had recognized that there existed a rationale for production.

一个伟大的学者已经清楚地认识到了生产的一项基本原理.