No, we call that work positive work. All right, so that means we need to put a negative sign right here, by convention.

历史上有过不同的习惯，这里我们规定,如果环境对系统做功。

麻省理工公开课 - 热力学与动力学课程节选

It's for 3 or 4 days and it's put on by a local businessman who's a blue grass freak,

它会持续3到4天，是当地的一名商人赞助的，他是个热爱蓝草的怪人，

愉快的音乐庆典 - SpeakingMax英语口语达人

And the disunited Canaanites put up little or no resistance: they're paralyzed by a fear that is sent by God.

而被分解的迦南人几乎完全丧失抵抗力：,他们因为上帝送来的恐惧全面瘫痪。

耶鲁公开课 - 旧约导论课程节选

Another book, which I haven't put on reserve yet but I'm going to, is by Peter Unger, who is a philosopher.

另一本书,虽然我还没有把它,列进参考书目,但是我要加上它,是彼得·昂格尔写的,他是个哲学家

耶鲁公开课 - 金融市场课程节选

The Elder Brother is issuing this theory without any consideration, - obviously, whatsoever of earthly reality and we're shocked by -- I don't know how else to put it.

大哥没有经过任何思考就提出了这个理论，显然，尘世间的任何事实都让我们震惊了-,我不知道怎么去说。

耶鲁公开课 - 弥尔顿课程节选

And the relationship that he put forth is that the momentum is equal to Planck's constant times nu divided by the speed of light, or it's often more useful for us to think about it in terms of wavelength.

爱因斯坦提出的关系式是,动量等于普朗克常数,乘以υ除以光速，或者用波长来表示,通常更容易让我们想明白。

麻省理工公开课 - 化学原理课程节选

It's put in a different way by Iser, but it is in a large degree the same idea.

伊瑟尔用了不同的方法来讲述，但很大程度上说的也是同一概念。

耶鲁公开课 - 文学理论导论课程节选

The food guide pyramid was the government's effort, put through by the U.S. Department of Agriculture about what people should eat optimally.

食物金字塔是政府努力的结果,它是由美国农业部提出的,关于人们最佳饮食结构的建议

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 the first place, by and until the twentieth century, I guess, human beings tended to stay put.

首先,我觉得,20世纪以前,人们都喜欢定居

耶鲁公开课 - 古希腊历史简介课程节选

And if you don't put a point but just put a number, this specifies the width of space that will be used by the number you're inserting there.

如果你不用点而只用数字，这个指定的长度是由,你插入的数字决定的。

哈佛公开课 - 计算机科学课程节选

It's an evil git versus an indignant angel and we can put the payoff matrix together by combining the matrices we had before.

是饭桶恶魔于愤怒天使的博弈,我们要把收益混合而在一起,只需要把之前的矩阵结合一下就可以

耶鲁公开课 - 博弈论课程节选

Notice by the way, there's that nice speck true going on saying put a string here.

在这里说放一个字符串在这儿有点小问题,如果是回文的话那么它将会返回真值。

麻省理工公开课 - 计算机科学及编程导论课程节选

Even if you like the novel, who else is really put off by this? Yes.

即使你喜欢这部小说，还有什么被这个题材影响的吗，是的。

耶鲁公开课 - 1945年后的美国小说课程节选

And this was put up by two people, Max Born and Fritz Haber.

这个是由2个人提出的，马克思，伯恩以及，弗里茨，哈贝。

麻省理工公开课 - 固态化学导论课程节选

So remember last time I put up the article by the Crimson that was unfortunately I couldn't find ? a more recent one-- that was 2004?

记得上次,我提出的《哈佛克里姆森》杂志里的文章,很可惜我找不到,更近期一点的，那是2004年的？

哈佛公开课 - 幸福课课程节选

What I was saying is after you gave your own name, put brackets and then the nickname by which you want me to refer to you.

我刚才说写了你们的名字之后，后面加个括号,写上你们想让我怎么称呼你们。

麻省理工公开课 - 电影哲学课程节选