Looking back now, nine years later, I can't remember exactly what it was about these universities that made them seem so much better.

九年过去了，现在回首过去，我已记不清到底是什么原因让这些大学显得如此美好。

youdao

So find purpose and passion in life and move forward, looking back only long enough to learn from it.

所以找准生活的目标，满怀热情地前进吧。 会看过去只是为了从中学到东西。

youdao

Looking back, I now see so many similarities between my own childhood and that of my sons.

回首过去，我看到我的童年和我儿子的童年有如此多的相似之处。

youdao

And then I could put a couple of plates and I could raster the beam so that when I am looking here,the beam goes back and forth about 80 times a second.

然后我放了两个感光片,我可以检测到光束所以,当我观察时,电子束以每秒80次的速度来来回回了。

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And so we're able to evaluate not just lives as a whole, looking back at the pearly gate.

所以我们不仅能评估整个人生，当站在天堂门口回首人生时。

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So if we do the procedure of iteratively deleting dominated strategies, going back again, looking what's dominated, all that's left is 5 and 6.

如果我们按照这个程序,迭代剔除劣势,不断回头看看那些策略是劣势的,最终将只剩下立场5和6

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So, looking back at 2011, I decided to see which strategy would have paid off best.

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So going back and looking, there have, people who've done studies after I wrote the book.

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And they're looking back and they're saying this dates back so many years, that a disputed election was just the catalyst, that we need to address things like ethnicity, power, privilege, equality - these are the deep-seated problems that Kenya has to deal with.

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