博尔德峡谷(美国亚利桑那州与内华达州之间科罗拉多河的峡谷)[亦作 Boulder]

VOA慢速英语 2007 0228b

VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about Hoover Dam. (MUSIC) VOICE ONE: Our report today about Hoover Dam must begin with the Colorado River. This river made the

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VOA慢速英语2007年（二）月

VOA慢速英语2010年-EXPLORATIONS - Hoover Dam: Taming the

STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with EXPLORATIONS in VOA Special English. Today we tell about Hoover Dam. It was the largest and most difficult structure of its kind ever built when work started in nineteen thir

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NPR 2010-12-23

The Senate has passed two major pieces of legislation this afternoon that had been caught in the grips of political stalemate. By a vote of 71-26, the Senate has ratified a new nuclear arms treaty with Russia. And Andrew Seabrook of NPR tells us that

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2010年NPR美国国家公共电台12月

NPR美国国家公共电台 NPR 2013-09-15

Heavy rains that caused severe flooding in parts of Colorado have subsided somewhat, giving officials time to begin to assess the damage and rescue stranded residents. As Nathan Heffel of member station KUNC reports, a new flash flood warning has bee

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2013年NPR美国国家公共电台9月

NPR 2010-09-11

Firefighters are steadily working to put out smoldering homes in San Bruno, California outside San Francisco, where an explosion last night killed at least four people and injured dozens more. At least 38 homes have been destroyed. San Bruno Fire Chi

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2010年NPR美国国家公共电台9月

EXPLORATIONS - Hoover Dam

EXPLORATIONS - Hoover Dam By Paul Thompson Broadcast: Wednesday, July 28, 2004 (MUSIC) VOICE ONE: This is Bob Doughty. VOICE TWO: Hoover Dam. And this is Steve Ember with EXPLORATIONS in VOA Special E

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automatic block-signal