When you are out in nature it is important to speak softly so as not to frighten the animals away.

VOA: special.2009.08.19

At least you maybe finding that and if not when you look back at the code you then have written you'll realize that in fact it just requires a few lines of code.

至少你会发现这一点，不然的话，在你写完代码，返回去,看的时候你会意识到,实际上它只需要几行代码。

哈佛公开课 - 计算机科学课程节选

And our third example touches on not when you are expressing a level of certainty,

接下来的第三个例句并不是用于表示某种程度的肯定，

I'm sure 课堂 - SpeakingMax英语口语达人

And when the pruning is done in August, the lambs -- well, you might not want to know this part.

VOA: special.2009.07.14

But hopefully, you will not be satisfied to just make a general statement here when we do have these glitches.

但是希望，大家不会仅,仅因为大致符合就满意了,毕竟还有些小偏差。

麻省理工公开课 - 化学原理课程节选

And when someone tells you that the cards are stacked against you, he is saying you do not have a chance to succeed.

VOA: special.2009.11.22

I'm not going to do it for you, but what would I think about doing when I change the code?

要改变代码应该做什么呢？,我不会帮你们做这些,但是我在改编代码的时候会想什么呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

You monkey around with something when you do not know what you are doing.

VOA: special.2011.03.13

Somehow when you're unnamed you're not part of language; you're still connected to the mother. And he actually had a female name. Remember he's called Christine for a while.

不管什么原因你没有名字就是没成为语言的一部分;,你还是与妈妈紧紧联系，事实上他会得到,一个女性的名字，记住他曾经一段时间被叫做克里斯汀那。

耶鲁公开课 - 1945年后的美国小说课程节选

We are not bluffing when we say we hope you have enjoyed today's program.

VOA: special.2009.11.22

You might believe for instance, that women should not prepare food when menstruating because it would contaminate the food.

例如，你可能会认为，女人来月经时不应该做饭,因为这样会亵渎了食物。

耶鲁公开课 - 心理学导论课程节选

When I tell you," said Joseph Taylor, "that he is not as fit to be president as I am, you will see how foolish this idea is."

VOA: special.2009.03.05

When you don't produce enough insulin yourself, as diabetics do not, then you can use insulin as a drug.

如果你的体内不能产生足够的胰岛素,例如糖尿病人,你就可以将胰岛素作为药物使用

耶鲁公开课 - 生物医学工程探索课程节选

Imagine a swimmer in water over his head You are in deep water when you are facing a problem that you do not have the ability to solve.

VOA: special.2009.05.10

Why not write the program in a way where you figure out dynamically when the program is run how much memory you need rather than hard coding in two with or within that constant.

为什么不写一个可以动态的方式写那个程序,程序可以动态分配内存,而不是用常量硬编码两个值。

哈佛公开课 - 计算机科学课程节选

When you cross the river, do not walk on the ice.

VOA: special.2010.06.26

Now today, the standard mortgage, which you would probably get when you buy your first house, is not fifteen or twenty--it's thirty years.

今天,标准的抵押贷款,当你买第一套房子时你或许就能得到,期限不是15或者20年,而是30年

耶鲁公开课 - 金融市场课程节选

"I do not want to," I sat down with him and said, "You do not have to tell me about your personal history, but when you finish writing that document...

VOA: special.2011.06.04

And with many military alliances, you see when it comes to fighting and battle, if you look at history, not everyone wants to take their part.

像所有的军事联盟一样，当遇到战争时，纵观历史，你会发现不是所有人都想参加。

普林斯顿公开课 - 国际座谈会课程节选

When you put a small seedling in, the roots are not deep enough to go into that water reservoir, so we need to bring the water up to the plant."

VOA: special.2011.06.14

The guys who are famous are the generals who get credit for putting together a nice formation when it's not the simple one I've just given you.

出名的是指挥官,他们是因为能排出精妙的阵型,而不是我摆的这个简单方阵而闻名的

耶鲁公开课 - 古希腊历史简介课程节选

"When I was reared in the British West Indies my grandmother used to always tell me, you may not be loved by certain forces in a society and you have to understand why.

VOA: special.2011.03.20

When you're in dreamless sleep, you're not imagining or experiencing anything.

当在无梦的睡眠中时，你没有想象或者体验任何事。

耶鲁公开课 - 死亡课程节选

"This movie,when you watch it at least when I do you expect it to be gratuitous and it is not.

VOA: standard.2010.06.20

This is so obvious in this problem, but when you see more complicated formula, you may not know all the assumptions that went into the derivation and quite often you will be using it when you shouldn't.

在这道题中这些都很明显,但是当我们用更复杂的公式时,你可能搞不清楚所有,在推导时的前提,因此很多时候,你都会用错公式

耶鲁公开课 - 基础物理课程节选

It is mind to mind communication. When you are in mind to mind to communication with Sarah Palin, it is not that interesting.

VOA: standard.2010.02.09

So we know that 2 is not dominated, and particularly not dominated by 3, When you delete the dominated strategy of 2 dominating 1, or 1 being dominated, when you delete that and 10, then it is.

我们知道选立场2并不是劣势策略,它并不劣于选立场3,当你剔除劣于策略2的劣势策略1,或者说立场1处于劣势,当你剔除策略1和10之后,2就变成劣势策略了

耶鲁公开课 - 博弈论课程节选

"This was Freddy Krueger." "When I was considering this a voice in my head kept saying 'how can you not play Freddy Kruger?'

VOA: standard.2010.05.04

And its opposition seems to me to be all together noble for know well men of Athens if I had long ago attempted to be politically active I would long ago have perished and I would benefited neither you nor myself. Now do not be vexed with me when I speak the truth.

而这样的违背在我看起来很高尚,因为可以彻底了解雅典人,如果很早之前,就试图活跃于政治的话,我早就没命了,也就无法造福你们或我自己,不要因为我说出真相而恼火。

耶鲁公开课 - 政治哲学导论课程节选

when you feel upset or when you feel frustrated that something is not going the way that you wish it would.

当你觉得很失落，或者当你因为事情不像你期望的那样进展而感到沮丧时，你也可以使用这个句型。

I'm frustrated 课堂 - SpeakingMax英语口语达人