But that is not always the case.

VOA: special.2009.10.08

All right. We've got a big majority, and both are logical ways of thinking, but it turns out that the majority is correct, which is not always the case, but the electron is not ejected in this case.

好，大多数人都这么认为，这两种看法都是合乎逻辑的，但结果是大多数人是对的，这种情况不经常发生，但是电子在这种情况下,确实不会被逐出。

麻省理工公开课 - 化学原理课程节选

But that was not always the case.

但是事情往往不是你们想的那样。

哈佛公开课 - 计算机科学课程节选

But this was not always the case.

VOA: special.2009.11.04

So it's not the case that top always beats-- it's not the case that top always does better than bottom, or that bottom always does better than top.

也就是说选择上并不总是最优的,上并不总是优于下,或者下并不总是优于上

耶鲁公开课 - 博弈论课程节选

It is certainly possible, for example, that a quadratic algorithm could run faster than a linear algorithm. It depends on what the input is, it depends on, you know, what the particular cases are. So it is not the case that, on every input, a linear algorithm is always going to be better than a quadratic algorithm.

一个二次平方级复杂度的算法,当然也是可能跑的比线性复杂度算法快的,这取决于，你知道的，输入以及特定的案例，因此并不是对于每个输入,线性复杂度就一定会,比二次平方级复杂度的算法的表现要好,只是通常来说是这样的。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is an unfortunate thing you see throughout education frankly, certainly at the secondary and primary school level where you just insert technology into the classroom and expect to solve problems, that is not in life always the case.

遗憾的是,中小学教育中,就是讲知识然后运用所学的知识解决问题,但是实际生活中不总是这样。

哈佛公开课 - 计算机科学课程节选