求翻译：美国黑人已经成为最大的少数族裔，约占全国总人的12％以上(tlle 2000 census)。同其他在美国居住了几个世纪的任何一个种族一样，他们对于美国社会的组成起到了相当大的作用，甚至美国文化主流受到的影响也不可估量。是什么意思？

African American has become the largest minority, accounting for more than 12% of the total (tlle 2000 census). Living in the United States with other centuries a race, they played a considerable role in the composition of American society, and even the mainstream of American culture affected immeas

Blacks in the US has become the largest minority, accounting for about 12% of the people (2000 census) tlle. With the other living in the United States centuries of any one race, and they make up for the American society played a considerable role in mainstream culture and even the United States are

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United States black people have become the largest minority, approximately 12% per cent of total national people (tlle 2000 census). With others in the United States like any one race has lived for centuries, they United States social composition has played a significant role, even United States cul

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