He said the first great fact was that laws were not necessary to keep slavery out of California and New Mexico.

VOA: special.2009.03.19

And what we saw last time is that this was necessary to make things work, this part of it in particular.

上节课我们讲,这是对外做功的必要条件，特别是这个部分。

麻省理工公开课 - 热力学与动力学课程节选

Do you think an undergraduate degree should be necessary to enter law school?

你认为进入法学院前必须要有本科学位吗？

想成为律师的话 - SpeakingMax英语口语达人

During the trial, he argued that he had the right to use whatever means necessary to protect himself and his family.

VOA: special.2009.11.01

Why is it necessary to rend something, to make it soul or whole? Is it necessary?

为什么要撕破某样东西，它才能完美呢，这有必要吗？

耶鲁公开课 - 现代诗歌课程节选

Good relations between Hawaii and the United States were necessary to keep the port open to American ships.

VOA: special.2010.07.08

This material will be necessary to do the listening exercises for the course, which is sort of the backbone of the course.

做听力练习时我们必须使用这些材料,听力训练是课程的核心内容

耶鲁公开课 - 聆听音乐课程节选

If it is necessary to borrow some money to fix the car, you should look for a friend who is an "easy touch".

VOA: special.2009.06.07

Probably the best answer is our body is worn out during the day and sleep is necessary to put it back into shape.

最佳的答案应该是,一天下来，我们的身体已经疲惫了,有必要进行睡眠，以恢复状态。

耶鲁公开课 - 心理学导论课程节选

That it was necessary to stop - for a while - all payments in gold or silver.

VOA: special.2009.01.01

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

The Republicans defended high tariffs, which they said were necessary to protect American industry and labor.

VOA: special.2010.05.20

For him, and I quote him, "Fortune is a woman and it is necessary to hold her down and beat her, and fight with her."

他认为,"命运就是女人,必须控制并将她打倒在地,与其斗争"

耶鲁公开课 - 古希腊历史简介课程节选

Mr.Stevens says a one hundred percent increase in fish farming over ten years is necessary to keep providing for people at the current level.

VOA: special.2011.02.08

Yes, I do believe it's theft but perhaps it is necessary to condone that theft.

我确实认为这是盗窃,但也许我们有必要容忍它。

耶鲁公开课 - 公正课程节选

The accord states that limiting temperature increases to no more than two degrees Celsius is necessary to stop the worst effects of climate change.

VOA: special.2010.01.19

Because they've made many copies of their genome and they've made all the proteins that are necessary to - for assembly of a new virus, then this cell can make many new viruses.

因为病毒制造了大量病毒基因组的拷贝,和所有,新病毒组装所需的蛋白质,所以这个细胞就有能力制造大量新的病毒

耶鲁公开课 - 生物医学工程探索课程节选

The answer is yes. However, you first must take the steps necessary to protect yourself and your family from the dangers of the sun.

VOA: special.2010.07.06

they think that art isn't something that's really necessary to their lives

他们觉得艺术对于他们的人生也不是必要的，

演技要磨练出来 - SpeakingMax英语口语达人

But more widespread awareness and education for all girls is necessary to tackle this issue."

VOA: special.2010.06.24

Or just have the good intentions without the effort that's necessary to bring about a positive exponential function.

还是只有好的意图但不付出,必要的努力发挥正面指数函数的作用。

哈佛公开课 - 幸福课课程节选

Lincoln said if force was necessary to protect the Union, then force would be used.

VOA: special.2009.08.06

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

Officials said the cloths were necessary to prevent them from talking to each other.

VOA: special.2010.01.07

Very difficult problems, but in my judgement, all solvable if we generate the country in the kind of bipartizan political cooperation and political courage that will be necessary to fix them.

这些问题很不容易解决，但我认为,不是不能解决，只要我们,以这种两党制的合作形式治理国家,还要有治理它们的政治勇气。

普林斯顿公开课 - 国际座谈会课程节选

And it proved that experienced pilots had the skills necessary to fly in space.

VOA: special.2010.07.07

Fate will permit no apocalypse before its time, before the necessary and painful steps that have to lead up to the Last Judgment.

命运在来之前不会允许人们去启示别人，必须要自己去经历必要而又痛苦的那几步,才能走向最终的审判。

耶鲁公开课 - 弥尔顿课程节选

Farmers know that it is necessary to make hay while the sun shines.

VOA: special.2010.01.31

Have we at least found something interesting,necessary, unique to death when we say,Nobody can die my death for me.

我们是否至少找到一些有趣，必要，独特的东西，当我们说“没有人能代替我死亡。

耶鲁公开课 - 死亡课程节选

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