单词：baseband twisted-pair system
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VOA Learning English presents Americas Presidents. Today we are talking about a vice president. John Tyler was William Henry Harrisons partner on the ticket in the 1840 election; he was the Tyler of the campaign slogan Tippecanoe and Tyler, too. But
2017年VOA慢速英语(四)月
Grammar Girl here. Today's topic is What's with those people who talk weird? or regionalisms. Language is constantly changing, and a lot of people have asked me about how and why it happens. This isn't my area of expertise, but I've done a lot of rea
英语语法 Grammar Girl
GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. So remember your high school science class? Maybe you had a textbook that sounded something like this. TYLER DEWITT: Remember that a water molecule is polar, with a partial negative charge
2017年NPR美国国家公共电台8月
STEVE INSKEEP, HOST: Americans said goodbye yesterday to Mary Tyler Moore, who died yesterday at the age of 80. She won seven Emmy Awards for her work on TV, but that number doesn't quite describe her place in the culture. She played characters to wh
2017年NPR美国国家公共电台1月
THE MAKING OF A NATION #71 - John Tyler By Frank Beardsley Broadcast: Thursday, July 15, 2004 VOICE ONE: THE MAKING OF A NATION -- a program in Special English. (MUSIC) As we reported in our last prog
The Making of a Nation
By Mike O'Sullivan Los Angeles 17 April 2008 Two American scientists, James Galloway and Harold Mooney, have won this year's Tyler Prize for environmental achievement. VOA's Mike O'Sullivan spoke with the winners about their work, and about the state
VOA常速英语2008年（四月）