求翻译：在2009年，第44任总统美国总统奥巴马，他以首位黑人入住白宫，他用他的努力他的行动验证了46年前的那句话，那句“我有一个梦想”的实现，从而推动了各种族的和平相处。是什么意思？

In 2009, the 44th President of the United States President Barack Obama, White House, his first black to stay, he used his efforts to validate his actions 46 years ago, that sentence, the phrase "I Have a Dream" can be realized, thus promoting the peaceful coexistence of various ethnic.

正在翻译，请等待...

In 2009, 44th president American presidents the Austria Pama, he enters the White House by the first place black, he used him diligently his motion to confirm 46 year ago that speeches, that sentence “I had a dream” realization, thus impelled various races living in peace together.

In 2009, the 44th President of United States President Barack Obama his first black admitted to the White House, he uses his efforts before his actions have verified that the 46-year sentence, the phrase "I have a dream" implementation, thereby promoting ethnic peace.

In 2009, the 44th President of the United States President Barack Obama, White House, his first black to stay, he used his efforts to validate his actions 46 years ago, that sentence, the phrase "I Have a Dream" can be realized, thus promoting the peaceful coexistence of various ethnic.