World leaders have already tried to temper expectations, warning that the current crisis did not come about overnight and will not be resolved in such short order either.

VOA: standard.2009.04.01

And the reason that this should be so fast is we already did all the calculations for the formal charges.

这应该很快就能做出来的原因是,我们已经做完了关于形式电荷的所有计算。

麻省理工公开课 - 化学原理课程节选

We already did that. OK, dH/dT constant pressure is Cp. That was easy one.

我们已经做过这个计算了，好的，在恒压,状态下的偏H偏T就是Cp，这个很简单。

麻省理工公开课 - 热力学与动力学课程节选

So it's on the elements on your left that are already known to be the lightest 'cause I did that.

现在已经知道在你们左边的元素,是最轻的，因为我已经比较过了。

哈佛公开课 - 计算机科学课程节选