But what's really shocking is when you compare this with this, it's based upon sonnet 57 because lanthanum is element 57.

但是真正令人震惊的是,当你比较这个和这个的时候，基于诗57来看7,而正好镧是57号元素。

麻省理工公开课 - 固态化学导论课程节选

and I work with them and you know, they hit their goal. That's when I feel the best about it.

我跟他们一起练，他们达成目标。那时候我感觉最好。

成为教练的理由 - SpeakingMax英语口语达人

And when you have an optimal substructure and the local solutions overlap, that's when you can bring dynamic programming to bear.

当你得到一个最优子结构,但局部解决方案有重跌时，你就可以引入动态编程,来解决这个问题了。

麻省理工公开课 - 计算机科学及编程导论课程节选

We also have scales in the chromatic mode and that's when we don't have just seven pitches within the scale.

我们也了解了半音调式中的音阶,也就是没有正好七个音高的,那种音阶

耶鲁公开课 - 聆听音乐课程节选

That's when I decided that I wanted to be a teacher and teach in this field.

选择教授这门学科。

哈佛公开课 - 幸福课课程节选

That's when it hits the ground.

方程的解就是落地时间

耶鲁公开课 - 基础物理课程节选

If you move past the West End, that's when you get to what we call West London.

如果你走过西区，你就到了我们所谓的西伦敦。

关于伦敦的全部 - SpeakingMax英语口语达人

That's why it's natural to point to the moment of star when we say that's when my death occurs.

所以很自然的，我就死在星号这里。

耶鲁公开课 - 死亡课程节选

And it turns out that when you constructively have two p orbitals interfere, and when I say constructively, I mean they're both either positive or they're both the negative lobes, that's when you got bonding.

当两个ｐ轨道,相长干涉时，我说的相干相长，意思就是说它们要么都是,正的叶瓣要么都是负的叶瓣，这时就能成键。

麻省理工公开课 - 化学原理课程节选

Now,notice that means that some people would say that they use that 367 date,when Bishop Athanasius sent around his Easter letter. And they say that's when the Christian canon of the New Testament was set.

有些人会说,它写于主后367年，即阿萨内修斯主教,分发复活节书信的时候,据说那就是确定基督教新约正典的时间。

耶鲁公开课 - 新约课程节选

Well, all of that might in fact be the goal but it's when you start hearing things like this hopefully that you at least start to grimace a little bit.

这是我们的目标,但实际上当你开始听到这样的事情,你可能开始愁闷苦脸了。

哈佛公开课 - 计算机科学课程节选

I'm again happy that you asked questions because that's when you bring out a speaker really well.

同时我又很开心你们在当时提出了问题,因为这样才能很好的鼓励发言者。

耶鲁公开课 - 金融市场课程节选

It's when I'm weary of considerations And life is too much like a pathless wood ; Where your face burns and tickles with the cobwebs broken across it, and one eye is weeping from a twig's having lashed across it open.

那是每逢我厌倦于操心世事,而人生太像一片没有小径的森林,在里面摸索，一头撞在蛛网上，只感到验上又热辣，又痒痒，忽然，一根嫩枝迎面打来,那一只给打中了的眼睛疼得直掉泪。

耶鲁公开课 - 现代诗歌课程节选

And he--she said to me, "That's when I knew he really loved me."

他对我说，，“那时，我才知道他是真的爱我“

耶鲁公开课 - 心理学导论课程节选

A nutrient is considered a substance within the food, that's when it digests it, absorbs, promotes some bodily function, so that it has some metabolic health value when people consume it.

营养素是包含在食物中的物质,由人体消化,吸收,推动身体机能,食品必须具有值得人类去代谢的健康价值

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In 1709, that's when Sweden loses to Russia.

在1709年,瑞典输给俄罗斯时

耶鲁公开课 - 欧洲文明课程节选