and that social norm is just something that's changed over time." And people share a lot.

VOA: standard.2010.07.23

But if it watches you over some amount of time just like it's been for years with advertisements, can this kind of algorithm, this kind of process presumably improve?

但是如果它像关注广告一样,花费一些时间关注你，这些算法和进程，想必会提升吧？

哈佛公开课 - 计算机科学课程节选

For the first time, the philosophy department has just switched over to the online discussion section registration system.

哲学部门，第一次被替换,成为在线讨论注册系统。

耶鲁公开课 - 死亡课程节选

I'm actually going to skip over this for reasons of time and just go to some examples of the unconscious in modern psychology.

由于时间的关系我就不讲这个问题了,直接给大家举一些,现代心理学中的无意识的例子。

耶鲁公开课 - 心理学导论课程节选

That's where you're just asked over a period of time, how often you eat this list of foods and you're given a very long list of foods.

正如同你们刚才问的,你多久吃一次这些食物,你有一个很长的食物列表

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And that's how over time you resolve conflicts, not just bring people together.

这样随着时间的推移，就能解决冲突，不仅是让人们聚在一起而已。

哈佛公开课 - 幸福课课程节选

Soil was being eroded and wasted along the Eastern seaboard, and they were using up the great soils of the Mississippi Valley and over time that slave system just somehow wasn't going to work out.

东部沿海地区的土地因被侵蚀而荒废掉,密西西比河谷地区的土地资源即将被耗尽,但就在这种情况下,奴隶制依然能维持南方的经济

耶鲁公开课 - 美国内战与重建课程节选

It might bend and bow, that is it's not the forces of nature like the movement of the river that's knocking the bridge down, but it's just the failure of these materials over time, that they don't last as long as they might.

这桥可能会折断,不一定是洪水这样的自然灾害,导致了桥梁的坍塌,可能只是因为建桥的材料老化,这种材料没有那么持久耐用

耶鲁公开课 - 生物医学工程探索课程节选

The period, that's right. So, it's going to take one period to move that long. And another way 1 we can say period is just 1 over nu or 1 over the frequency So, now we know both the distance traveled and the time the elapsed.

还是？周期，对的,它需要一个周期的时间,另一种说法是周期是,除以nu，也就是1除以频率,现在我们同时知道了。

麻省理工公开课 - 化学原理课程节选

If we look down at it and say, "It's a terrible thing that " I just derive benefits from helping other people", then that part of our nature will depreciate over time.

如果我鄙视它并说，“很可怕,我从帮助他人身上获得利益，那么本性中那一部分将随时间贬值。

哈佛公开课 - 幸福课课程节选

So basically, the whole society was spending all of the time raising enough food just to support life and there was only 5% left over and that ended up being used in ways like this.

基本上,整个社会全部时间都被用于积累足量食物,这仅是为了维持生计,只剩下5%的时间,被用来建造金字塔,为法老服务

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, we can just plug it in. Speed is equal to the distance traveled, which is lambda over the time elapsed, which is 1 over nu. so, we can re-write that as speed is equal to lambda nu times nu, and it turns out typically this is reported in meters per second or nanometers per second.

经过的距离和所花的时间,我们把它们带进来,速度等于经过的距离,也即是lambda除以,所花的时间,通常它的单位,是米每秒或者纳米每秒。

麻省理工公开课 - 化学原理课程节选