回顾历史，这是我们生存技能的一部分；像大多数动物一样，当视觉信息匮乏时，我们利用嗅觉来识别猎物。
Go back in history and this was part of our survival repertoire; like most animals, we drew on our sense of smell, when visual information was scarce, to single out prey.
回顾历史：2008年1月至3月。
回顾历史，答案就在其中。
研究设计：回顾历史队列研究。
回顾历史和思考未来，都极需要想象力。
Review the history and thinking about the future, imagination are badly needed.
关于这个我说要回顾历史。
难道我们希望在25年后回顾历史时，后悔再次重蹈覆辙么？
Do we want to look back 25 years from now and regret not having stayed the course again?
然而，回顾历史，我们会发现，内在品质比外在特征更加重要。
But history has taught us that who we are is more important than who we appear to be.
事实上，回顾历史，也只有相对公平的20世纪堪称独树一帜了。
Actually, if one looks at a broad sweep of history, it is the relatively egalitarian 20th century that seems the exception.
回顾历史，我们能发现很多不同的故事最后被证明都是关于信息的故事。
When we look back through history, we can see that a lot of different stories all turn out to be stories about information.
回顾历史我们可以看到计算机是如何在改变了我们的生活和语言。
From the historical review we can see how computer changes our lives and our language.
回顾历史，古人把文字记录在石头或者粘土上，这在今天看来是非常落后的。
If you look back in history, ancient civilizations used to carve letters on stone and clay. This seems very antiquated today.
回顾历史可以帮助我们，因为我们不是面对环境挑战的第一个社会。
A historical perspective can help us, because ours is not the first society to face environmental challenges.
我们的情况有点复杂，所以我们尽量更多地思考未来代替回顾历史。
Our situation is a little complicated, so we try to think more about the future, instead of the past.
回顾历史，展望未来，更容易令人认清这种交流的运动趋势和基本规律。
Review of history and expectation of the future make it easy to understand the currents and rules of the communication mentioned above.
日志允许您回顾历史，查看是否有错误发生并在问题发生时获取有关问题的更多细节。
Logs let you look back in time to see whether errors occurred and get more details about problems as they occur.
对许多美国人来说，这个假日也是他们回顾历史，反省作为一个美国人意义何在的时候。
And, for many Americans, the holiday weekend is also a time to think about history and reflect on what it means to be an American.
“但我们回顾历史时，我们将接受评判”看一看我们所做的战略决定是否正确。
"But when you look back in history, what will be judged" is whether the "right strategic decision" was made.
鉴于以上事实，现在回顾历史时，很容易得出《广场协议》是一个坏主意的结论。
Now, given that, it might seem tempting in retrospect to conclude that the Plaza Accord was a bad idea.
纪念“12.9”青年运动，回顾历史，缅怀那些在运动中英勇献身的烈士们。
Memorial, "12.9" youth movement, to review history and memory of those who gave their lives heroically in the movement.
回顾历史，能量大部分时间只能通过人畜的劳力获取，使能源及其使用非常之少。
For most of human history, the labor of men and animals was the sole source of energy, and that placed significant limits on how much energy we could use.
当游客来游览大峡谷时，他们实际上是在回顾历史，观察过去时代形成的各种岩层。
When one visits the Grand Canyon, they are literally looking into the past, and seeing the layers of rock from past eras.
不过当你从十九世纪开始回顾历史，这些因素的确能解释，国家是如何转变成现在这样的？
But yet when you look back from the nineteenth century, these factors do count in explaining how countries turn out to be the way they are.
不过当你从十九世纪开始回顾历史，这些因素的确能解释，国家是如何转变成现在这样的？
But yet when you look back from the nineteenth century, these factors do count in explaining how countries turn out to be the way they are.
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