巴菲特和这位微软共同创始人继续通过慈善宣传活动，呼吁富豪们捐出至少半数财产，也就是所谓的巴比捐赠誓言。
Buffett and Microsoft‘s co-founder continue to push tycoons to eventually give away at least 50% of their wealth through their charity publicity project, the Giving Pledge.
他们已经为Giving Pledge（由盖茨和巴菲特联合创办的主要面向富豪的慈善组织）签约了三十余位慈善家，包括甲骨文公司CEO拉里埃尔森和微软创始人之一的保罗艾伦。
They've signed up more than 30 philanthropists, including Oracle Corp. Chief Executive Officer Larry Ellison and Paul Allen, co-founder of Microsoft, to their Giving Pledge initiative.
《福布斯》杂志日前发布最新美国富豪榜，微软集团创始人比尔·盖茨取代“股神”沃伦·巴菲特，重夺首富桂冠。
Microsoft founder Bill Gates has recovered his spot at the top of the US money heap, displacing investor Warren Buffett as Americas richest person, Forbes magazines latest list reveals.
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