This accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more convenient: "How come nobody thought of that before?"

这就解释了为什么当我们看到像塑料垃圾袋和带轮行李箱这些让生活更方便且看似简单的发明时，我们的反应是：“为什么以前没有人想到这个？”

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This accounts for our reaction to seemingly simple innovations like plastic gargabe bags and suitcases on wheels that make life more convenient: "How come nobody thought of that before?"

这就解释了为什么当我们看到像塑料垃圾袋和带轮行李箱这些让生活更方便且看似简单的发明时，我们的反应是：“为什么以前没有人想到这个?”

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Scientists think this is the plants' way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars.

科学家认为，这是植物防止树木疾病传播的方法，并给像毛毛虫之类的食叶昆虫制造些生存上的困难。

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I also use it as a connection between family life, family roots and just to make the adventure more real.

联系家庭生活和,故乡的纽带,并通过它们使这次旅程更真实。

麻省理工公开课 - 媒体、教育、市场课程节选

Today we're going to be talking about meditation and how to bring these practices into our life, to make life better and feel more connected.

今天我们来谈谈沉思冥想,以及如何在生活中具体实践，让生活更好，更有关联感。

普林斯顿公开课 - 人性课程节选

So, for example suppose now, just to make life a little bit more interesting, suppose that the voters were actually two rows and just allow me the suspension of disbelief that these rows have the same number of people in them, I know they don't really.

例如,假设现在,为了更有趣点,假设选民是两排人,且允许我认为,这两排人数相同,我知道他们实际上是不同的

耶鲁公开课 - 博弈论课程节选

The rise of Tizen will make life more difficult for Microsoft (MSFT) and Research In Motion (RIMM).

FORBES: Tizen Cued Up For Assault On iOs, Android

It will require a broader effort to make life more just and equitable for the people who inhabit this Earth.

WHITEHOUSE: President Obama on the National HIV/AIDS Strategy

And, besides that, it will make life more interesting and more fun.

BBC: News | Monitoring | President Clinton on Shanghai radio phone-in