"I can say that,anecdotally, virtually all the teachers noticed immediately much more alertness in class, definitely more positive mood.

VOA: special.2010.10.07

I'm going to say, quite to the contrary, the positive charge is concentrated at the center in a tiny, tiny, tiny volume.

我要说的是，完全相反，正电荷集中在中心,在一个非常非常小的体积内。

麻省理工公开课 - 固态化学导论课程节选

As humans I think our instinct is to want more, you know, not be positive and...

作为人类我觉得我们的直觉是追求更多东西，你知道，不怎么积极，而且……

我的理想是 - SpeakingMax英语口语达人

And then,years ago when I first found out that I was HIV positive, my initial reason for doing glass was I wanted to leave one glass vase for my nephew and nieces to remember their uncle by.

VOA: special.2009.09.16

I think it's also the struggle of a generation trying to enrich the public square with positive conversation about religion.

我认为这也是我们这一代人的努力,我们试图通过积极地谈论宗教,来丰富社会生活。

普林斯顿公开课 - 人性课程节选

She says she is HIV-positive. "I came to take my treatment for the baby and to see how the baby is feeling."

VOA: standard.2010.07.01

You see because I see other positive psychology classes on other campuses around the country and around the world.

因为我参与过其他大学积极心理学课,遍及全国，乃至全球。

哈佛公开课 - 幸福课课程节选

But I always looked at it as a positive. Hey,I can bridge both worlds."

VOA: standard.2009.12.11

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

"A year ago I thought the forecast of economists who were saying we'll be back into positive growth territory by the end of the year might be optimistic.

VOA: standard.2010.01.15

So, if I've got positive charge uniformly distributed, look at the choice. It's a brilliant experiment.

所以如果按照正电荷是均匀分布的假设来说，就会是这样的，这是一个聪明的实验。

麻省理工公开课 - 固态化学导论课程节选

"This is a positive development,". "I have always been of the view that the Iranian nuclear issue is an issue that can only be resolved through dialogue, through diplomacy.

VOA: standard.2009.10.19

So zero is supposed to be neither positive nor negative, and here I am just simplifying and saying it's actually going to be negative.

所以0不是一个正数，也不是负数，在这里我只是简单地,说明它实际上会是负数。

哈佛公开课 - 计算机科学课程节选

"I think,structurally this is a long-term positive with some short-term pain,".

VOA: standard.2009.12.02

I want to end though on a positive note.

在课程结束前我想说点正面的知识。

耶鲁公开课 - 心理学导论课程节选

"There's no indication that the B-1 breaking off from positive I.D.

VOA: standard.2009.06.08

But again, if you think of the possibility of doing that for all eternity and never getting away from it, never being free from it, the positive dream of immortality, I think, becomes a nightmare.

但是想想如果永远,那样下去，永远不法逃离，永远无法解脱，永生的美妙梦想，就会变成恶梦。

耶鲁公开课 - 死亡课程节选

"Well,I think the message from the United States personally coming here will obviously be a positive impact,in the sense that President Obama's administration is deeply concerned about the displaced people,".

VOA: standard.2009.06.03

I'm pressing on the gas. So I expect that to be a positive number. The pressure is constant 0 p. The V goes from V1 to zero.

我们对气体加压,所以这应该是一个正数,压强是常数，p，V从V1变成。

麻省理工公开课 - 热力学与动力学课程节选

But it turned out". "We did get back into positive growth territory by the end of the year so it wasn't quite as disastrous as I feared it might be."

VOA: standard.2010.01.15

The pessimism sort of surprised me. So I spent some time looking for sort of a deeper positive message.

这其中的悲观主义某种程度上使我感到惊讶,我花了些时间寻找蕴含其中的深层的积极信条。

麻省理工公开课 - 电影哲学课程节选

"I think on balance it will be positive in the sense that it is stimulating a recognition beyond the shores of North America, that this needs to be dealt with better."

VOA: standard.2010.04.01

I mean, there is an emptying out of positive meaning in the very awareness that, after all, the red light could mean "go" I'm about to go on and give more examples.

这就事我们不能主动赋予符号意义,但是是要认识到，红灯也有表示，出发，的意思“,我会用更多例子来说明它。

耶鲁公开课 - 文学理论导论课程节选

"So I think in context, that's a positive sign."

VOA: standard.2010.07.02

And this is what positive psychology does and I hope this is what 1504 to some extent will help do.

这就是积极心理学的作用,我希望1504号课程在一定程度上会有帮助。

哈佛公开课 - 幸福课课程节选

So I think that it is a very positive speech and also it will impress a lot of people in the Islamic world to think of the attitudes of the United States,".

VOA: standard.2009.06.04

OK, so all I do is I take into account that I've got all the positive charge, whatever it is, it's a nucleus.

我做的全部是考虑,我得到所有的正电荷，无论是什么，都是一个核。

麻省理工公开课 - 固态化学导论课程节选

Silvia expects the situation to improve soon. "I would suspect that the jobs numbers would turn positive by the second quarter of this year, so probably another two or three months out we'll get some positive jobs numbers."

VOA: standard.2010.03.02

So, I've got plus twos, zooming in at high energy against a wall of positive charge.

两个高能的正电荷,在正电荷壁垒时会遇到阻力。

麻省理工公开课 - 固态化学导论课程节选

That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.

顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。

麻省理工公开课 - 固态化学导论课程节选