Here is an example that shows some very, very metallic elements, groups one and two, and some non-metallic elements over here, five, six and seven.

举个例子,这个例子表明金属元素，第一族和第二族，与一些非金属元素,在这里，第五族，第六族，和第七族。

麻省理工公开课 - 固态化学导论课程节选

If the average age of death was something like forty-five, maybe a fifty-fifty chance of--high risk-- of one of the parents dying.

那么这个概率其实很低,不是吗,大概有高达50%的可能性,双亲中的一人会死去

耶鲁公开课 - 金融市场课程节选

We have about twenty-five copies, so don't take one if you don't need it.

有25份，已经有了的同学不要再拿了。

耶鲁公开课 - 文学理论导论课程节选

If you collapse data, as we did in this one paper, across all developed and developing countries here's what we're expecting in the next twenty-five years.

如果想改变这个情况,就像这页幻灯片中指出的,改变所有发达国家和发展中国家,对未来二十五年的情况的预期

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Remember your task for this week-- a dozen of you have already read it-- it's to commit- above and beyond what you usually commit- five extra acts of kindness during one day.

记得你们这周的任务-,一些同学已经知道-,就是去做超越以往所做的事情-,一天内多做五件好事。

哈佛公开课 - 幸福课课程节选

Any of you who have access to a four- or five-year-old, a sibling or something-- Do not take one without permission, but if you have access to a four- or five-year-old you can do this yourself.

如果你身边有四五岁大的孩子,兄弟姐妹什么的,一定要先得到同意再去试验,如果你身边有四五岁大的孩子,你可以自己去试试

耶鲁公开课 - 心理学导论课程节选

He writes down this four- to five-minute composition note for note in just one sitting.

他便一口气,逐个音符地,写下了这段四到五分钟的作品

耶鲁公开课 - 聆听音乐课程节选

She's done fantastic work, showing how people who help-- whether it's helping five extra acts during the week-- it can be more; doesn't have to be restricted to five-- or people who help five extra acts during one day, it's actually contributing to their wellbeing.

她很好地，证明人们-,不论是在一周内多做五件好事-,可以更多;,不必局限于五件-,或者人们在一天内多做五件好事，都能让他们更幸福。

哈佛公开课 - 幸福课课程节选

You can only drive one car at a time and if you have five cars-- well I mean that's kind of-- all right you could have five cars and you could drive a different one everyday, but it's starting to seem a little ridiculous, right?

你只能一次开一辆车,而且如果你有五辆车,我的意思是那种...,好吧,你能有五辆车,而且你可以每天开不同的车,但是这有点荒谬,不是吗

耶鲁公开课 - 金融市场课程节选

You put a child on one side of the mountains and you ask him to draw it, and a four- or five-year-old can do it easily, but then you ask him to draw it as it would appear from the other side and children find this extraordinarily difficult.

你让孩子在模型的一边,要求他把自己看到的三山模型画出来,四五岁的儿童便能够轻易做到,但是,如果你要求儿童画出,从模型另一边看过去的样子,儿童就会觉得非常困难

耶鲁公开课 - 心理学导论课程节选