用今天照亮明天。

Light tomorrow with today!

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iPad的屏幕相当于一个正方形，用今天的标准来看，就是一个老套的4:3屏幕。

The iPad screen is a relatively square, by today’s standards, with an old-school 4:3 screen aspect ratio.

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用今天的美元计算，经通货膨胀调整后，道琼斯指数必须超过13595.49点才算回到1999年的水平。

Using today's dollars and starting at 10520.10, the Dow would have to surpass 13595.49 to get back to its 1999 level in real, inflation-adjusted terms.

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But we can use equations that describe waves to describe matter, and that's what we're going to be doing today.

但我们可以用描述波的方程,来描述物质，这就是我们今天要做的。

麻省理工公开课 - 化学原理课程节选

Hobbes provided us with the definitive language in which even today we continue to speak about the modern state.

霍布斯提供了一种权威性的概念,而直到今天,我们依然用它来描述现代国家。

耶鲁公开课 - 政治哲学导论课程节选

And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.

然后我们会回头继续讨论效率问题,我们如何计算算法的效率？,我们处理这些问题的时候,最重要的事情是什么？,我们今天要去讨论这个问题，毫无疑问我们要用,挺多节课来学习这个。

麻省理工公开课 - 计算机科学及编程导论课程节选