延伸阅读：胡斯尼·穆巴拉克是不是世界首富？

Read: Is Hosni Mubarak the world's richest man?

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比尔·盖茨再次成为世界首富。

BILL Gates is once again the world's richest person.

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比尔·盖茨是世界首富之一。

Bill Gates is one of the richest men in the world.

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比尔·盖茨是世界首富之一。

Bill Gates is one of the richest men in the world.

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