So, we spend a lot of time writing what's called user narratives of this user or this person.

所以我们花了很多时间写,各种用户的体验。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

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

So I don't know, I actually spent a long time random stuff.

我就是喜欢编程，花了很多时间，设计了许多程序。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

We've already spent a fair amount of time this semester talking about searches.

我们这个学期已经花了,很多时间来讲搜索和搜索算法了。

麻省理工公开课 - 计算机科学及编程导论课程节选

So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.

因此,生物医学工程师花了很多年时间,致力于设计像髋关节这样的关节替代品,尤以人工髋关节的研究最为成熟

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