通过这个简单的计算，我们便得出了世界上最悲惨的国家排名。
Doing this simple calculation, we found the most miserable countries in the world.
这个世界上最大的社交网站(拥有5亿用户且人数还在增加)的计划很简单，只是他背后所带来的影响巨大：人们可以知道网站用户所在的确切地点。
What the world's biggest social-media website (500 million users and rising) plans is simple, yet huge in its implications: members will have their exact whereabouts disclosed to others.
这个网站是是世界上最大的网上图书交换社区之一，而且它的界面非常简单。
This site is one of the largest book-swapping communities online and the interface is very simple.
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