单词：Airco-Hoover sweetening
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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
2010年VOA慢速英语(十)月
VOA Learning English presents Americas Presidents. Today we are talking about Herbert Hoover. He took office in 1929. Hoover was president for the early years of what Americans call the Great Depression. During those years, the United States economy
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EXPLORATIONS - Hoover Dam: Taming the Colorado River and Powering Millions BOB DOUGHTY: This is Bob Doughty. STEVE EMBER: And this is Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about Hoover Dam. (MUSIC) BOB DOUGHTY: Our repor
2012年VOA慢速英语(三)月
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. It was the largest and most difficult structure of its kind ever built when work started in nineteen thirty-
VOA慢速英语2009年（八）月
BOB DOUGHTY: Welcome to THE MAKING OF A NATION -- American history in VOA Special English. The presidential election of nineteen twenty-eight gave American voters a clear political choice. The Democratic Party nominated Al Smith. He was the popular g
2011年VOA慢速英语(二)月
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
Explorations