At least 3 years.具体你自己看他的介绍吧.

来源: 2` 于 2008-09-05 09:29:25 [] [旧帖] [给我悄悄话] 阅读数 : (62 bytes)
回答: That isn't true. His first job is community organizer. 由 2` 于 2008-09-05 08:39:15

http://en.wikipedia.org/wiki/Barak_obama#Early_life_and_career

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