The researchers were from the University of Colorado Denver, Denver, Colorado; Washington University, St. Louis, Missouri; and the University of Pennsylvania, Philadelphia, Pennsylvania.

研究人员来自科罗拉多丹佛大学，华盛顿大学，圣路易斯大学，密苏里大学及宾夕法尼亚，费城的大学。

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Many schools throughout Long Island, New Jersey, and the rest of the Tri-State area remained closed, as was the case with the Washington, Baltimore and Philadelphia school systems.

整个长岛，新泽西和三州毗邻区的学校都在停课。 华盛顿，巴尔的摩的情况也是如此。

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I-95 runs from Maine to Florida and connects such cities as Boston, New York, Philadelphia, Baltimore and Washington.

I - 95公路从缅因州延伸至佛罗里达州，连接着诸如波士顿、纽约、费城、巴尔的摩和华盛顿等城市。

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President William Howard Taft began the tradition, also in a game between Washington and Philadelphia.

VOA: special.2010.04.10

Other cities,including Philadelphia, Washington and Los Angeles, are making plans to use the San Francisco program as a model.

VOA: standard.2010.07.26

The storm affected Amtrak service, including shutting down service between Washington and Philadelphia on Saturday morning.

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Jordan has been a head coach in the NBA with Sacramento, Washington and Philadelphia.

WSJ: Ed Jordan back at work after Rutgers talks

Jordan has been a head coach in the NBA with Sacramento, Washington and Philadelphia, posting a 257-343 record.

WSJ: AP Source: Jordan coming back to NJ for more talks