Twenty-four-hour news, e-commerce, mobile phones, Global Positioning Systems, all these are making the world smaller and faster.

24小时新闻、电子商务、移动电话、全球定位系统，所有这些都正在使世界变得更小、发展得更快。

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For example, for the typical e-commerce site there are four (at least) basic use cases.

例如，对于典型的电子商务站点，有四个(至少)基本用例。

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It is developing a completely electronic reference desk, and there will be four Kindle 2 e-readers on site.

它开发了一个完全电子化的参考桌，这里会有四台Kindle 2电子阅读器。

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In July,the Defense Department e-mailed a "Don't Ask,Don't Tell" opinion survey to four hundred thousand service members.

VOA: special.2010.10.23

Serres responds to the e-mail four minutes later.

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Or rather, a list of e-towns in four countries in Europe, Britain, Poland, France and Italy.

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It comes with a special set of accessories including an e-dice and four joysticks and strikers to offer a completely new digital gaming experience that combines the physical gaming accessory with the on-screen action.

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