In the north London neighborhood of Haringey, some young people are using their energy to do positive things.

VOA: special.2011.08.13

And we're going to have q2 prime, and we're going to draw the arrows in the positive direction in these cases.

还有q2一撇，在这个例子中,我们把箭头朝正方向。

麻省理工公开课 - 热力学与动力学课程节选

and you know, we're all trying to make the... trying to interact with the audience in a positive way,

而且你知道，我们都试着以一种积极的方式与观众互动，

我是摇滚音乐家 - SpeakingMax英语口语达人

The singer said the testing shows that she is,in her words, borderline positive for the disease.

VOA: special.2010.06.15

And, we're going to look at what happens as the chloride ion moves from infinity in towards the positive ion.

然后我们要看一下,当氯离子从无限远处逐渐靠近,这个正离子会发生什么。

麻省理工公开课 - 固态化学导论课程节选

Awadi is a Senegalese musician who created the band called Positive Black Soul in nineteen eighty-nine.

VOA: special.2009.10.14

But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.

电子的波动行为时,我们，要记住,某些地方是正的,某些地方是负的,当我们讲到。

麻省理工公开课 - 化学原理课程节选

"so we wanted to highlight our concerns by promoting a positive image of Islam which is rarely seen in the mainstream."

VOA: standard.2010.07.19

In 1999 he taught the first positive psychology class at Harvard, one of the first in the world.

999年，他首次在哈佛开设了本课程，在全球范围内也是首批。

哈佛公开课 - 幸福课课程节选

With nearly eight percent of pregnant women in the capital testing HIV positive, preventing mother-to-child transmission is especially important.

VOA: standard.2009.04.24

The difference is in positive reinforcement you do something; in negative reinforcement you take away something aversive.

区别就是，在正强化中你接受某种刺激;,而在负强化中你回避了某种厌恶刺激。

耶鲁公开课 - 心理学导论课程节选

The visit has been welcomed as a positive change in Washington's Burma policy, from one of isolation to engagement.

VOA: standard.2009.11.02

All right, but still it's a red light, right, and our hypothesis is that the red light has positive value in the sense that it means a certain thing. It means, we say, "stop."

它是一个红灯，我们假设红灯主动自带含义,它代表着，停“

耶鲁公开课 - 文学理论导论课程节选

"We can be proud of the positive contribution that our servicemen and women are making, in conjunction with our allies,".

VOA: standard.2009.12.25

On the one hand, the optimists might say, "Even when we throw in the extra interaction effects, even the negative interaction effects, the overall nature of the human condition is positive.

一方面，乐观主义者可能说，“就算我们把另外的相互影响，就算把负面的相互影响算进去，人类处境的总体本质还是积极的。

耶鲁公开课 - 死亡课程节选

Lauper was joined in London by a group of HIV-positive women from the national AIDS charity Positively Women.

VOA: standard.2010.03.02

Humility and power come from this religious engagement because from the best of our traditions to go out and engage in the world in a positive, constructive way.

谦卑和力量源于这一宗教融合,因为我们走出去，并以积极的,有建设性的方式融入世界的传统是好的。

普林斯顿公开课 - 人性课程节选

However in quieter provinces Afghans see positive trends according to Sunil Pillai, who directed the Afghan Survey Project.

VOA: standard.2009.10.27

Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.

功是负的，总而言之,外界对系统做功的符号为正。

麻省理工公开课 - 热力学与动力学课程节选

On the positive side, the Commerce Department reports U.S.factory orders rose 0.4 percent in June, beating analysts' expectations.

VOA: standard.2009.08.05

And so we have a positive charge in the nucleus which is given by the number of protons.

在原子核上,有很多质子聚集而形成的正电荷。

麻省理工公开课 - 固态化学导论课程节选

The Director General of the Society of Indian Automobile Manufacturers,Dilip Chenoy, hopes the positive trend will drive a recovery in the auto sector.

VOA: standard.2009.03.13

I went into the positive psychology, into the field of psychology, as I mentioned in the first lecture, because I was unhappy here.

我之所以研究积极心理学，探索心理学领域，正如我第一节课时提到的，是因为我不快乐。

哈佛公开课 - 幸福课课程节选

The young people here are hard at play, and the Muslim elders are hard at work trying to keep them engaged in positive activities.

VOA: standard.2009.12.20

One person actually took the primer in positive psychology and she translated it into Japanese.

有一位学生把积极心理学初级课本,翻译成日语。

哈佛公开课 - 幸福课课程节选

Dr.Oduor says in reality, only 1.3 percent of the blood collected is found to be HIV-positive.

VOA: standard.2010.06.04

There is, of course, a lot of debate about universities like Yale to the extent in which they promote interdependence-- sorry, they promote positive contact between groups.

当然还有很多人讨论像耶鲁这样的大学,在促进人们的互相依赖中所起的作用-,对不起，是促进群体间的正面接触。

耶鲁公开课 - 心理学导论课程节选

But this mother in North Carolina said she thought the speech could have a positive impact.

VOA: standard.2009.09.08

So you don't want to put in a negative energy, that's not going to help you out, you need to put in positive energy to get an electron out of the system. So that's why you'll find binding energies are always negative, and ionization energies are always going to be positive, or you could look at the equation and see it from there as well.

因为这对电离没有帮助,你需要一个正的能量,使得电子脱离这个系统,这就是为什么你会发现,结合能总是负的而电离能总是正的,或者你们看这个方程也可以发现这一点。

麻省理工公开课 - 化学原理课程节选

.. Because we also have to add in, if we accept a valuable container theory, we also have to add in some extra positive points to take account of the fact that, well, at least you're alive or have the life or a person-- or whatever it is that you think is valuable in and of itself.

因为我们还要添加，如果我们接受有价值容器理论的话，我们还要添加一些额外的正数,你要考虑，你至少活着或者拥有人的生命-,或任何你觉得它本身有价值的东西。

耶鲁公开课 - 死亡课程节选