"I think the ideal strategy is one that combines a number of ways to create a culture of wellness, in which people are encouraged to exercise and eat healthy."

VOA: standard.2010.07.16

The 430 years number is also something of an ideal number.

而430年也是一个理想化的数字。

耶鲁公开课 - 旧约导论课程节选

So this is a very small number and for ideal gases, eta J is equal to zero.

这是一个，很小的数。

麻省理工公开课 - 热力学与动力学课程节选