The power of linearity is F=k1+k2 if I come across f of x, y, z equals k1 plus k2, if it is a linear equation, I don't have to go and solve it all over again.

线性的威力是,一个方程，如果它是个线性方程，那么我就不用再去解他了。

麻省理工公开课 - 固态化学导论课程节选

So note God's offer to start all over again with Moses.

所以值得注意的是，上帝愿意重新开始，就像摩西所说的那样。

耶鲁公开课 - 旧约导论课程节选

Now what I want to do is take you exactly to this place where we are right now, where we see energy levels and electron filling, but I want to start all over again and I want to use a totally different approach.

现在我想做的是带你们,到达我们现在所处的地方，我们能看到能量级和电子分布的地方，但我想重新开始,而且用一个完全不同的方法。

麻省理工公开课 - 固态化学导论课程节选

The other obvious one to do would be worst case. Again, over all possible inputs to this function, what's the most number of steps it takes to do the computation?

很明显另一种就是针对最坏的情况了,也就是在所有可能的输入,里面选出用的,步骤最多的那个输入？

麻省理工公开课 - 计算机科学及编程导论课程节选