这些小企业还包括那些帮助人们打点第二人生的营销机构和设计公司、那些制造和销售游戏币的企业，以及那些提供虚拟世界内部服务的公司。

These include marketing agenciesand design firms that help people operate in Second Life, businesses that helpbuild and sell game pieces, and those that provide in-world services.

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同时《模拟人生》已被翻译成22种不同的语言，在60个国家均有销售。

It has been translated into 22 different languages and is available in 60 countries.

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图书销售总额的大幅增加主要归功于诸如华理克所著的《标竿人生》等此类图书，《标竿人生》是2004年美国最畅销的非小说类图书，其销量超过700万册。

Much of the growth is from books like Rick Warren's "the Purpose-Driven Life," the top-selling non-fiction book in the United States in 2004, selling over 7 million copies.

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