Some scientists now believe that tension headaches may result from changes among brain chemicals such as serotonin.

VOA: special.2010.03.30

What we're going to do in forming a molecule is just bring these two orbitals close together such that now we have their nucleus, the two nuclei, at a distance apart that's equal to the bond length.

我们在形成一个分子时要做的就是,把这两个轨道放到一起,这样我们有他们的原子核，两个原子核，它们之间的距离为键长。

麻省理工公开课 - 化学原理课程节选

Now never mind that our own experience with virgins has failed to afford us such a spectacle of bodily transformation.

没有关系，如果我们关于贞操的知识,之前未能告诉我们如此壮观的身体转换。

耶鲁公开课 - 弥尔顿课程节选

And let's say our second electron now is really far away, such that it's actually not going to shield any of the nuclear charge at all from that first electron.

距离原子核非常非常近,我们说第二个电子处于非常远的位置,这样它不会对第一个电子,感受到的来自原子核的电荷量有任何屏蔽作用,我们最后要说的是。

麻省理工公开课 - 化学原理课程节选

But they had several other books that we now call the Apocrypha, such as Judith or Tobit or the 1 and 2 Maccabees.

但他们也有我们现在称作伪经的书，比如朱迪丝书，托比特书和马卡比一书二书。

耶鲁公开课 - 新约课程节选

Its composition is influenced and determined by literary conventions and goals. Now, of course we all know that there is no such thing as purely objective history anyway. We have no direct access to past events.

它的形成是受文学的惯例和目的影响和决定的,当然现在我们都知道了没有什么是纯客观的历史,我们没有直接通向过去事件的途径。

耶鲁公开课 - 旧约导论课程节选

I'll let you read Siegel and his discussion of this possibility, ... but I think that-- what I want to get now is not necessarily any agreement on whether you believe that there's such a high excess return for stocks.

我会要求你们读西格尔的书,以及他对这种可能性的讨论，但是我认为-,你们并不需要,同意炒股的收益,远远高于其他的投资方式。

耶鲁公开课 - 金融市场课程节选

The other one is a committed progenitor cell that now somehow has been changed in such a way that it's going to mature and develop into non-stem cells or the cells that make up our bodies, somatic cells.

而另一个子细胞就通过某种变化,成了定向的祖细胞,并将成熟和发育为非干细胞的细胞,就是构成我们身体的细胞,体细胞

耶鲁公开课 - 生物医学工程探索课程节选

I mean what if you're running so many things, what if the user has copied and pasted their thesis and just pasted it at the blinking prompt such that you're now out of memory because your computer is somewhat limited in memory so get string cannot possibly return all those characters or fit all of those characters in memory and return to you the address of the first.

如果你运行了很多程序，假使用户复制粘贴了他们的论文,只是粘贴在光标提示符那里,这样就出现了内存不足,因为你们的计算机的内存是有限的,所以GetString不可能返回所有的字符,或者保存这些字符到内存中,并且返回第一个字符的地址。

哈佛公开课 - 计算机科学课程节选

And all we mean by constructive interference is that literally those two waves add together, such as the maxima are now twice as high, and the minima are now twice as low.

相干相长，相干相长也就是,说两个波加在一起，所以最大值变成2倍那么高，最低值变成2倍那么低。

麻省理工公开课 - 化学原理课程节选