八年来
For eight years
以上为机器翻译结果，长、整句建议使用 人工翻译 。
八年来，我们已经取得了很大进展，但美国正变得更加多样化，所以还有很多事情要做。
We had made a lot of headway in eight years, but America was growing more diverse, and there was still much to be done.
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