With the evolution of virtual reality technology, tourism will increasingly become a combination of physical and virtual worlds.

随着虚拟现实技术的发展，在旅游业中现实与虚拟将日益紧密结合。

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One booming area is in virtual worlds.

虚拟世界是一个蓬勃发展的领域。

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Virtual worlds are not a recent development.

虚拟世界并不是最近才出现的东西。

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They can then spend the electronic currency on multiplayer games, casual games, and virtual worlds.

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PlaySpan is currently on more than 1, 000 online games, virtual worlds, and social networks.

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In 20 years, many of us will spend much of our time in game-inspired virtual worlds.

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