rational

词根词缀:

词根
rat= to calculate 计算

ratify v. 证实

rat 计算 + ify 使… → 通过计算证实 → 证实

ration n. 定量

rat 计算 + ion 表名词 → 计算出来的量 → 定量

rational adj. 合理的

ration 定量 + al …的,具有…性质的 → 通过计算来定量 → 合理的

rationality n. 合理性

rational 合理的 + ity 具备某种性质,状况 → 合理性

数据来源:新东方英语词汇速记大全

相关例句:

The arrangement presumes that both lenders and borrowers are rational.

这一协议假定借贷双方都是在神志清楚的状态下签订的。

IBM Rational can help you with your software delivery process automation planning and value analysis.

IBM Rational有助于您进行软件交付过程自动化的计划和价值分析。

As a source of knowledge the strength of rational statements lies in reliability and predictability, but not in breadth or applicability.

作为知识的来源之一,理论叙述的作用在于可靠性和预见性,而不在于广泛性和实用性。

Mary was able to short-circuit her stress response by keeping her thoughts calm and rational.

玛丽能够保持头脑清醒理智,因而迅速做出反应。

This is the simplest method to transfer Rational Projects.

这是转换Rational项目最简单的方法。

Did he come across as a sane rational person?

他看起来是一个正常而理智的人吗?