求翻译：发展至今，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？

Now, the Afro-American has become 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 imme

Thus far, the United States black has become the most significant of the 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 cultu

The development until now, the black Americans already became the biggest ethnic minorities, approximately composed above national total person's 12% (tlle 2000 census).Lived several century any race with other in US to be same, they regarding American society's composition quite major function, eve

Development to date, the 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 rol

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