We really have to ask ourselves, why is quantum mechanics limited?

我们真的得问问自己，为什么量子力学是有限的？

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We really have to ask ourselves, why is quantum mechanics this limited?

我们真的得问问自己，为什么量子力学是有界的？

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If we wanted to view a map of Europe, did we really have to visit a library?

人们总是到图书馆才能够查阅欧洲地图？

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"What's causing that misalignment is what we really have to go after.

VOA: standard.2009.06.16

We make software; we make technology; we're innovative ,but so are they So, what we really have to do is become a lot more productive and we have to make our companies a lot more competitive. Today, I feel we're losing that edge.

我们生产软件；发展工业技术;,我们有创新能力，但他们也有,所以，我们现在必须要做的就是提高生产效率,我们必须提高我国公司的竞争力,现在，我觉得在这方面我们正在丧失竞争优势。

耶鲁公开课 - 金融市场课程节选

And though we come from really different backgrounds, it's been very fun to have him here as well.

尽管来自不同的背景，但我们之间相处得非常愉快。

康奈尔的教授不一样 - SpeakingMax英语口语达人

Do we really have to wait for something bigger in order to get smarter.

CENTERFORSECURITYPOLICY: Wanted: A real energy security bill

"I mean we really have to think about these things as a society, " he adds.

WSJ: Holman W. Jenkins Jr.: Google and the Search for the Future

But we really have to trade off all the costs and all the benefits of having a predator.

BBC: NEWS | Science/Nature | Dingo has 'vital ecosystem role'