Using a flood of new tools and technologies, each of us now has the ability to easily collect granular information about our lives—what we eat, how much we sleep, when our mood changes.

运用新的工具和科技，我们现在可以轻松地获得关于身体方面的信息---我们吃了什么，我们睡了多长时间，我们的情绪什么时候发生了变化。

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It's a prize that could help us understand what drives major changes in Earth's climate.

其成果将帮助我们理解究竟是什么驱动了主要的全球气候变化。

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Suddenly the tune changes from what a great tool the cell phones are to how horrible they are when used against us.

从手机是多么好的工具，到它被用来对付我们是多么可怕的工具，论调突然转变。

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So that tells us what to do to know the entropy as the temperature changes.

这告诉我们当温度变化时,如何得到熵的数值。

麻省理工公开课 - 热力学与动力学课程节选

Again, when we see this evidence, then it starts to help guide us about what we might do to make changes in society in general.

当我们看到这些事实的时候,我们就知道可能应该怎么做,才能在整体上改变这个社会

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Things are changing and we need to think through what those changes mean to us.

NPR: 'Battle for Peace' in Iraq Echoes Vietnam

It is a US-centric report because the goal of it is to figure out what happens to the US as changes occur around the world.

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Mr Napolitano's office cited what it said were changes to US security policy undertaken by President Barack Obama.

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