He said the Earth is hiring and it was up to them to join together and do what is needed to help save the planet.

VOA: special.2009.06.05

The biggest thing for me on that path is I needed to draw something out and I needed to get it out of my head.

在我看来，这条路上最重要的莫过于,是需要描绘出一些东西,再把它们忘却。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

And the oddity is Socrates doesn't respond to it in the way that he should have, in the way that he needed to.

奇怪的是苏格拉底并未,作出他应有的回应，并未作出他需要作出的回应。

耶鲁公开课 - 死亡课程节选

It is also needed to make a light-sensitive substance in the eyes.

VOA: special.2009.04.21

All we really needed to know about it is that this is smaller right.

我们已经知道,这部分比较小。

麻省理工公开课 - 热力学与动力学课程节选

But they add that failure to implement fiscal consolidation where it is needed could undermine confidence and hamper growth.

VOA: standard.2010.06.27

So if you were starving and you really needed energy, that is your body needed calories, it needed usable energy in order to survive, the broccoli's not going to do you much good and the brownie would be terrific.

假如你快饿死了,实在需要能量,那是你的身体需要卡路里,身体需要可利用的能量去支撑,花椰菜这时就没多大帮助了,布朗尼蛋糕才是首选

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Treasury Secretary Timothy Geithner told ABC television's "This Week" program that the Obama administration is prepared to provide the financial help needed, if it is convinced that carmakers will emerge from restructuring stronger and more competitive.

VOA: standard.2009.03.30

So, it turns out that n is not the only quantum number needed to describe a wave function, however. There's two more you can see come out of it.

事实上，n不是描述一个波函数需要的,唯一的量子数，你们可以看到，还需要，两个量子数。

麻省理工公开课 - 化学原理课程节选

"It would be unethical for us to turn our back on these people and not conduct the research that is so desperately needed to develop the drugs to treat these diseases and the vaccines to prevent them in the future."

VOA: standard.2010.02.16

Our facilities are clearly understaffed." The International Confederation of Midwives says with the support of the United Nations, the World Health Organization and large non-profit organizations, it is more optimistic about getting the funding needed to recruit these new trainees and deploy them into the communities where they are needed.

VOA: standard.2010.06.15