But much more time is spent on the nuts and bolts generally called logistics of how to transport and supply an army.

VOA: special.2009.11.01

So, saying wave functions within molecules might sound a little confusing, but remember we spent a lot of time talking about wave functions within atoms, and we know how to describe that, we know that a wave function just means an atomic orbital.

说分子内的波函数可能,听着有点容易搞混，但记住我们花了很多时间,讨论了原子中的波函数，而且我们知道如何去描述它，我们知道波函数意味着原子轨道。

麻省理工公开课 - 化学原理课程节选

Like I said, with the most valuable resource being the president's time, a lot of efficiently running White House time is spent on how to allocate that precious resource.

正如我所说，在白宫里,最宝贵的资源是总统的时间，很多高效运作的时间,都用于决定如何使用,这个宝贵的资源。

普林斯顿公开课 - 国际座谈会课程节选