notion
观念,信念,理解
a political system based on the notions of equality and liberty.
建立在自由平等观念上的政治体系
I have to reject the notion that the greed can be a good thing.
我不能接受那种认为贪婪也可以是件好事的想法。
She had only a vague notion of what might happen.
对于可能发生的事,她只有一个模糊的概念。
notional adj. 猜测的,估计的,理论上的,想象的