It's rhymed iambic tetrameter, four beats per line, with some variations.

这是首押韵的短长体四音部句，一行四音，也有些变化。

耶鲁公开课 - 现代诗歌课程节选

They want to get as far away from each other possible, the ideal angle is 120. But what we have here is a four-membered ring, so what angle does 90° that have to be, that bond? 90 degrees.

它们想要尽量远离彼此，最理想的是形成120°键角,但现在是个四元环,所以这键角应该多大？

麻省理工公开课 - 化学原理课程节选

That's not really all that important for us because what's important for us is to see at this point, either 200 or 400,what was included and what was not.

这对我们并不怎么重要,因为重要的是在那个时期，即主后两百年或四百年，书目上有哪些书。

耶鲁公开课 - 新约课程节选

Then I look up here and say 408 00:20:43,112 --> 00:20:44,894 "Well, in this duple pattern I have two of these quarter notes."

然后我看了看这里这是两拍子的形式,有两个四分音符

耶鲁公开课 - 聆听音乐课程节选

When I was commuting between Limoges and Paris, that was still a long trip then, there was no TGV; it was about four hours.

如果我在里摩日和巴黎之间通勤,这依旧是段漫长的旅途,这儿没有法国高铁,大概要用四小时

耶鲁公开课 - 1871年后的法国课程节选

And, this is a really clever reaction because titanium tetrachloride is a gas.

这是一个非常巧妙的反应,因为四氯化钛是一种气体。

麻省理工公开课 - 固态化学导论课程节选

It does represent the sum, in the sense that if i gave you four bucks and I gave you five bucks, I gave you effectively nine.

它表示的就是这两个矢量的和,好比是如果我给了你四美元,然后再给你五美元,我其实给了你九美元

耶鲁公开课 - 基础物理课程节选

I think, a collection of epic poems written in Sanskrit that goes back-- it was actually written over a course of 1,000 years and it was completed in the fourth century.

这是本用梵文编著的史诗作品集,可以追溯到...,事实上这本作品的创作时间历时近千年,最终完稿于公元四世纪

耶鲁公开课 - 金融市场课程节选

It seems possible in the case of string quartets.

这在弦乐四重组的例子中是可能的。

耶鲁公开课 - 死亡课程节选

Now, So, you have these maps in your head but the thing to realize is— And these maps are part of your cortex, but the things to realize is that's an important part of what goes on in your brain but less than one quarter of the cortex contains these maps or projection areas.

你的脑袋里存在着这些定位图,但你们会发现,这些定位图是你大脑皮层的一部分,但你们会发现,这是在你的大脑活动中,起到重要作用的一部分大脑皮层,不过只有不到四分之一的大脑皮层,存在这些定位图或是投射区

耶鲁公开课 - 心理学导论课程节选

Our step three is to figure out how many bonding electrons that we need, or excuse me, how many total electrons that we need to fill up our octets, so that's just going to be 4 times 8, which is 32.

我们的第三步是判断,我们需要多少个成键电子，不好意思，是我们总共需要多少个电子,才能填满所有“八隅体“,那么这就应该是四乘上八，也就是三十二。

麻省理工公开课 - 化学原理课程节选

It was regular and it happened to involve four chords.

这是规则的，一共四组和弦发生了规则的改变。

耶鲁公开课 - 聆听音乐课程节选

How did they settle on these four,though?

但他们是如何选定这四卷的？

耶鲁公开课 - 新约课程节选

So this should immediately look like a problem because we know, in fact, that methane is tetravalent, and this is telling us it's only divalent.

显然这看起来是一个问题,因为我们知道实际上，甲烷是四价的，而这告诉我们它仅仅是二价的。

麻省理工公开课 - 化学原理课程节选