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Barack obama was inaugurated as america 's 44th president .

巴拉克奥巴马宣誓就任美国第44任总统。

Barack obama nominated sonia sotomayor to the supreme court .

贝拉克奥巴马提名索尼娅索托马约尔担任最高法院大法官。

Barack obama has even begun talking about climate change again .

barackobama甚至开始再度谈起气候变化的问题。

His birth certificate shows he is barack obama 's half brother .

他的出生证明显示他是总统奥巴马的同父兄弟。

Barack obama picked jacob lew as his new budget director .

美国总统奥巴马提名雅各布卢出任新白宫预算主任。