Virtual Internet learning environment is the foundation of the Internet study.

虚拟的网络学习环境是网络学习的基础。

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A private network between two remote sites, over a secure encrypted virtual Internet connection (a tunnel).

两个远程站点间专用网络，通过安全加密的虚拟因特网连接通道。

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They offer a virtual Internet addiction test that can help you determine whether it might be time to shut down, logoff or change your IM status to "away."

该中心提供一种网络成瘾虚拟测试，这能帮你决定是否是时候来关机，登出账户或者改变即时通讯状态为“离线”。

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It is a magnet to cyber-entrepreneurs who dream of pushing the computer revolution into new areas: companies such as American Cybercast, which is trying to pioneer entertainment on the Internet, Virtual Emporium (Internet shopping) and Digital Domain (special effects).

ECONOMIST: How to remake a city

Bitcoin startups are beginning to raise sizable investment capital even as industry leaders warn that hackers are abusing the Internet virtual currency for profit.

WSJ: Bitcoin Virtual Currency Start Up Gain New Venture Backers

Indeed, First Virtual, an Internet commerce firm, has developed an advertisement that can act as a tiny shopfront (imagine a Nike ad that would let you order a pair of shoes from within the banner), merging advertising and direct commerce.

ECONOMIST: Electronic commerce