The center will focus on four priority activities starting with the letter E: ecology, ergonomics, efficiency and economy.

中心的四个首要活动将围绕4E展开：生态学、工效学、效率和节约。

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Blueberries are particularly rich in fiber – four times that of strawberries – as well as containing more natural sugars, much more vitamin E and some unique micronutrients that are good for memory。

蓝莓的纤维是草莓的四倍，并且它含有更多的天然糖分和维生素E，以及一些对记忆力很好的微量元素。

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Interviews were carried out over the telephone, via E-mail or fax or face to face in four cities including Beijing, Shanghai, Guangzhou and Wuhan.

此次调查主要通过电话、电子邮件、传真以及面对面的形式进行，调查地点包括北京、上海、广州和武汉四个城市。

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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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