单词：Muller's ratchet
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That afternoon, the children attended the Music Appreciation workshop in the auditorium. As they slid into their seats, Victor tapped his baton for attention. The audience fell silent. In order to appreciate music, he began, one should know something
45 The Mystery of the Stolen M
THIS IS AMERICA - Exploring the Art of Rhetoric STEVE EMBER: Welcome to THIS IS AMERICA in VOA Special English. Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith. This week on our program, we learn about the art of rhetoric and tell you about
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President Trump has gotten personal in a new tweeting tirade against James Comey calling him quote a slimeball, a leaker and a liar and the worst FBI director in history by far. Comey meanwhile is also speaking out. I dont know whether the current pr
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THE PRESIDENT: It's been a pleasure of my presidency to get to know the leaders of Rolling Thunder. For our fellow citizens who don't know Rolling Thunder, Rolling Thunder is the moment in time here in Washington, on Memorial Day Weekend, when thous
美国总统每日发言
Melody led them to the lobby. She stopped before a glass case on the wall. Pointing to several sheets of music displayed inside, she said, Look at those! Arent they amazing? a woman who had been staring at them said. Benny didnt see anything special
45 The Mystery of the Stolen M
1135 、 晶体点阵；晶体格构；晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
英文名句短语
AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: a Web site that offers an interesting look at United States life and history, through examples of how Americans use rhetoric, the language of persuasion. RS: Michael Eidenmuller i
英语单词大师-Word Master
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经济学人商业系列
By Paul Sisco Washington 02 May 2007 Americans are celebrating a new arrival to Washington D.C. -- one that is 500 years old. VOA's Paul Sisco explains. America's birth certificate on display at the U.S. Library of Congress Across from the U.S. Capit
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流行英文歌曲
今天我们要学的词是ratchet。 Ratchet是一个机械部件，叫棘轮，推动机器向一个方向转动。做为动词，我们可以说: ratchet something up or ratchet something down, 意思是逐渐提高或是逐渐降低。 哈佛大学
英语每日一词
今天我们要学的词是ratchet。 Ratchet是一个机械部件，叫棘轮，推动机器向一个方向转动。做为动词，我们可以说: ratchet something up or ratchet something down, 意思是逐渐提高或是逐渐降低。 哈佛大学
英语单词荟萃
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MADRID, Dec. 6 (Xinhua) -- FC Barcelona striker Leo Messi spoke on Thursday about the moments of worry he felt after going down clutching his knee during Wednesday night's Champions League tie against Benfica. Messi collided with Benfica keeper Artur
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Lion Conservation Challenges Giraffe Protection The giraffe is an icon of the African savannah. The lion is the top predator of the ecosystem. Both animals face uncertain futures, and both are subjects of intense, ongoing conservation work. Now a stu
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Fifty years ago, President Lyndon Johnson declared a war on poverty. The success or failure of that war has been debated ever since. As part of our anniversary coverage, NPR's Pam Fessler is reporting on the difficulties of living in poverty and on h
英语语言学习
Broadcast on COAST TO COAST: June 17, 2004 AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: a Web site that offers an interesting look at United States life and history, through examples of how Americans use rhetoric, the langua
词汇大师(Wordmaster)
今天我们要学的词组是ratchet up。Ratchet up，意思是激化、加剧 。North Korea's foreign minister ratcheted up tensions, saying his country had the right to shoot down U.S. planes even outside North Korean airspace. 朝鲜外交部长加
英语单词荟萃
It's a Man's Man's Man's World是一首James Brown在1966年创作的歌曲，发布于当年的同名专辑中，并作为单曲打榜，获Billboard排行榜最佳RB单曲第1以及Billboard排行榜最热100金曲第8。 This is a man's world, thi
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