其中，俄勒冈州和南卡罗来纳州的增幅超过20%，加利福尼亚州、科罗拉多州、佛罗里达洲、马里兰州、俄亥俄州和华盛顿洲的增幅都超过10%。

The welfare caseload rose by more than 20% in Oregon and South Carolina, and by more than 10% in California, Colorado, Florida, Maryland, Ohio and Washington state.

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美国煤矿主要在六个州：宾夕法尼亚州、俄亥俄州、印第安那州、西维吉尼亚州和科罗拉多州。

Coal was produced mostly in six states: Pennsylvania, Ohio, Indiana, Illinois, West Virginia and Colorado. In eighteen forty, the United States had seven thousand coal miners.

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但是新的民调显示，奥巴马在重要的州，比如宾夕法尼亚州、俄亥俄州和科罗拉多州，明显领先。

But new polls give Obama a significant lead in key states like Pennsylvania, Ohio and Colorado.

youdao

但是新的民调显示，奥巴马在重要的州，比如宾夕法尼亚州、俄亥俄州和科罗拉多州，明显领先。

But new polls give Obama a significant lead in key states like Pennsylvania, Ohio and Colorado.

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