But it is not necessary for me to praise my superior.

VOA: special.2010.01.24

It's not necessary to do that, but it can be quite convenient.

虽然没有必要这样做，但是这样做是很方便的。

麻省理工公开课 - 热力学与动力学课程节选

It's not necessary.

不是必须要接受面试。

被学问的自由所迷住 - SpeakingMax英语口语达人

The report says longer than that is usually not necessary.

VOA: special.2010.05.25

It's not necessary very well formatted but it looks pretty complex, right?

排版不是很整齐,看起来也非常复杂，不是吗？

哈佛公开课 - 计算机科学课程节选

It is not necessary. It puts us in the wrong.

VOA: special.2009.08.06

Don't put in extra bells and whistles if it's not necessary.

不必要的话不要放进去,多余的铃声和口哨声。

麻省理工公开课 - 固态化学导论课程节选

I did not intend to fight unless it became necessary in self-defense and in the performance of official duty.

VOA: special.2010.02.15

Identity is not necessary, but contingent, as the philosophers put it."

同一性不是必然的,而是偶然的,就像哲学家们常说的

耶鲁公开课 - 死亡课程节选

This is necessary so that the walls of a building will not shrink or break.

VOA: special.2009.01.12

Then the duke judged that such excessive authority was not necessary, because he feared it might become hateful and he set up a sort of a civil court in the middle of the province with the most excellent president where each city had its advocate.

然后君王判断,这样过度的威信是不需要的，因为他害怕那可能会变成仇恨,他在该省区中心,设立了一个类民事法庭,并派出最优秀的大臣,让每一座城都有自己的律师。

耶鲁公开课 - 政治哲学导论课程节选

But some experts believe that many of the C-sections are not medically necessary.

VOA: special.2009.11.24

The regions that are necessary for describing what the protein is like are called exons, the regions that are not are called introns.

因此我们把编码蛋白质的区域,称为外显子,而把不参与编码蛋白的区域称为内含子

耶鲁公开课 - 生物医学工程探索课程节选

However,it did not provide necessary information about the time somewhere else.

VOA: special.2010.07.14

Why? Because good will and idealism, while necessary,they are not sufficient.

为什么呢？因为美好的意愿和理想主义，虽然必要，但却是不够的。

哈佛公开课 - 幸福课课程节选

"What is necessary in this case is a collective effort, not only by the researchers and the people on the ground, but also the donor community, because controlling those two diseases can go a long way in improving people's food security and livelihoods in Sub-Saharan Africa."

VOA: special.2009.09.21

Eliot was there, in that essay on the metaphysical poets that I'm quoting from, defending as necessary what is the primary characteristic, not only of his own poetry, but really of modern poetry generally, what is often called its difficulty.

艾略特在描写那些抽象派诗人的文章里,就是我引用的那篇，极力维护,诗人的首要特征，不仅是因为他自身的诗性，更因为维护现代诗歌的必要，这是非常困难的一件事。

耶鲁公开课 - 现代诗歌课程节选

But Cheney said he is not sure the Obama administration will do what is necessary to keep Iran from developing nuclear weapons.

VOA: standard.2010.02.14

Finally though, the point that he makes is a terrific one, all of these things seem natural to us but the reason why they seem natural is not because they are in some sense necessary or logical truths.

最后，尽管，他表达得很好，所有这些对我们而言很自然,但我们认为他们自然的原因,并非他们是必要的,或是逻辑真理。

耶鲁公开课 - 心理学导论课程节选

While not stipulating dollar amounts of U.S.military aid, it authorizes such sums that are necessary to help the country deal with security needs.

VOA: standard.2009.09.24

We've extrapolated that people have property rights and so whether or not it would be a good thing or a nice thing or even a necessary thing for the survival of some people, we don't see that that justifies the violation of the right that we've logically extrapolated.

我们已经推出人们有财产权,所以，就算是为了做好事，做善事,甚至是为了让某些人活下去而必须做的事，那也是不能证明，侵犯这些推定的权利,就是正当的。

耶鲁公开课 - 公正课程节选

Although many people are disappointed, not everyone in Poland thinks the original missile-defense plan was necessary.

VOA: standard.2009.10.21

Because once you actually push people,to pin them down, what do you mean by it,you end up with something that's either just not true, or not interesting,or not necessary, or not particularly unique to death.

因为你一旦逼问他们这到底是什么含义，得到的东西既不会是真实的，也不会是必要和有趣的，也不会是对于死亡来说独特的。

耶鲁公开课 - 死亡课程节选

He says he believes it is necessary to let North Korea know having nuclear programs will prove to be a bigger disadvantage than not having them.

VOA: standard.2009.05.26

The fact that I have this star here, this star here, this star here, is really just 'cause I'm a little anal and it looks pretty to make a little box out of everything but it's not strictly necessary.

事实上大家可以看到，这有颗星，这有颗星，这有颗星，其实是我手痒,这看起来像是用*围成个框，把它们包围起来,其实这是完全没有必要的。

哈佛公开课 - 计算机科学课程节选

"The Afghan people do not want us in Afghanistan any longer than necessary.

VOA: standard.2009.03.23

Now defragmentation as an aside is not so much necessary these days because hardware has gotten so performance.

在硬件性能如此好的今天,碎片处理显得并不是那么的重要。

哈佛公开课 - 计算机科学课程节选

That violence brought an overnight curfew to Port Gentil which was repeated Friday and will continue, Ndongou says, "as long as necessary if calm does not prevail."

VOA: standard.2009.09.05

we're looking for something that's true,necessary,interesting and, if not unique to death,at least not true of everything.

我们要寻找的是真实，必要，有趣的，而且就算不是死亡独有，也不能是普遍事实。

耶鲁公开课 - 死亡课程节选

Hardly. Does it not require those qualities of self-control, discipline, and restraint necessary to achieve success here?

不！难道不需要那些特质吗,诸如自控，纪律与克制等，以求在此取得成功？

耶鲁公开课 - 政治哲学导论课程节选