In other words, if you look too closely at a picture or if you stand too far away from it you don't see it clearly it's out of focus but if you achieve just the right distance from it, it comes into focus.

换句话说，如果你站得离一幅图画太近,或太远都无法看清它,它在焦距之外,但是如果你站在合适的位置上，焦距就对准了，画就清晰了。

耶鲁公开课 - 文学理论导论课程节选

This intensely intimate focus on the human body is out of place in a Christian elegy and this, of course, Milton knows.

这对人类肉体的极端关注在一首基督教悼亡诗中,是不合时宜的，弥尔顿当然知道这点。

耶鲁公开课 - 弥尔顿课程节选

It's deliberate that a lot of the examples in lecture are fairly short and bite-size so that you can actually focus on pulling out the key ideas without getting distracted by line and lines of code.

很多的演讲中的例子,是短小的,因此你们可以集中于提取其中的主要思想,而不是被一行行的代码给分心。

哈佛公开课 - 计算机科学课程节选

But I would primarily focus on this emerging new class of prostheses that aims to read information out of the brain to help some of the most paralyzed patients.

但是，开始我想重点介绍这一新兴的脑接口,旨在解读大脑外部的信息,帮助严重瘫痪的病人。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

So that's what we are going to focus on, and you will find out that the laws of physics for this entire semester certainly can be written on one of those blackboards or even half of those blackboards.

这就是我们的课程重点,而且你将来会发现,整个学期的全部物理定律,最多也只能写满一块黑板,或者半块黑板

耶鲁公开课 - 基础物理课程节选