rational

释义

a. 理性的, 合理的\nn. 有理数 rational design 合理的设计 rational choice 理性选择；理性抉择 rational analysis 示构分析；示性分析

例句

Did he come across as a sane, rational person?

他看上去是不是一个头脑清醒而理智的人？

Parents need to be fully informed so they can make a rational decision.

父母需要充分了解情况，这样才可以作出合理的决定。