One of his sons, Mark Obama, has accused him of abuse and wife-beating.

他的儿子之一，马克·奥巴马，曾指控他虐待和殴打妻子。

youdao

Born in Kenya, Mark Obama has a US citizenship and a physics degree from Stanford University.

生于肯尼亚，马克·奥巴马现在拥有美国国际，从斯坦福大学获得物理学硕士。

youdao

Mr. Obama will mark time, but henceforth he will not define the national agenda.

他标志着这个时代，但仅此而已，他无法在国家大事上树立里程碑。

youdao

The national security challenge comes at a difficult time for Mr.Obama, who later this month will mark his first year in office.

VOA: standard.2010.01.06

From Barak Obama.com, a moral imperative by any measure, by any measure, mark that, Dr. Sowell, a better health care system is also essential to rebuilding our economy.

援引，Barak，Obama。com网站的话，道德上,不管怎样，不管怎样，索尔博士，听听他说的，一个更好的医疗体系,对于重建经济很重要。

斯坦福公开课 - 经济学课程节选

Long-time Murtha aide and Democrat Mark Critz won that seat Tuesday in a conservative district that voted for Republican John McCain over Democrat Barack Obama in the 2008 presidential election.

VOA: standard.2010.05.19

Two key Middle East leaders also offered their perspectives as we approach the 100-day mark of the Obama presidency.

CNN: King: Crisis and controversy dominate Sunday talk

Nonetheless, his withdrawal from consideration is yet another embarrassing mark on the Obama administration's Linconesque plans for bipartisan rule and deep government reform.

FORBES: The White House

Obama: Mark: You know that the Republicans are using the closing of White House tours to hurt me politically.

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