"She's not really trying to send any signal at all. This is a trip where we're trying to focus on India and really highlight the new strategic partnership, and again all the people-to-people ties.

VOA: standard.2009.07.15

Bad things can happen, so it's really, really hard to just focus on getting things right and not winning the argument.

坏事情总会发生，所以要想将精力,集中于把事情做好,而不是去赢得这场争论真的很难。

耶鲁公开课 - 金融市场课程节选

Our brain is really good at kind of absorbing music and lyrics and so if you're trying to focus on that,

我们的大脑真的很擅长于理解音乐和歌词，所以如果你试着把注意力集中到那个上面，

英语学习技巧 - SpeakingMax英语口语达人

So honestly, one of the best strategies in this course and in programming in general is-- generally speaking design, but it's these little tricks of the trade that will honestly make things much more fun, much more easier, and really allow you to focus on the juicy parts of the problem and not little tiny bugs that you may have started tripping over already.

说实在的，这堂课在编程方面最棒的策略之一,简而言之，就是--设计，但这只是一些让事情更简单,更容易的小技巧，让你专注于问题的核心关键,而不是一些可能让你绊倒的,这样或那样的小错误。

哈佛公开课 - 计算机科学课程节选

What I'm going to do is focus on a couple basic things that turn out to be really important for general applications, and then I'll talk not in too much detail about a few applications of DNA that you're probably familiar with to try to give you a framework to hang this on.

我要重点讲一些基础知识,这些知识在一般应用中十分重要,然后我会简略的讲讲,关于DNA的一些应用,你们可能已经比较熟悉了,我只是试着给你们打一个框架

耶鲁公开课 - 生物医学工程探索课程节选