单词：circumvallation
n. A line of field works made around a besieged place
and the besieging army, to protect the camp of the besiegers against
the attack of an enemy from without.
单词：circumvallation 相关文章
With the development of science, human life has changed tremendously. People living in the 18th or 19th centuries would never imagine the advanced household appliances we are now able to enjoy. Every aspect of our lives for instance, in the field of
疯狂英语易背作文
Archaeology is a source of history, not just a bumble auxiliary discipline. Archaeological data are historical documents in their own right, not mere illustrations to written texts, Just as much as any other historian, an archaeologist studies and tr
英语范文背诵20篇
Welcome to THE MAKING OF A NATION -- American history in VOA Special English. By eighteen sixty-three, America's northern states and southern states had been fighting a bitter civil war for two years. Both sides felt the pressure of the costly strug
VOA慢速英语2009年（十）月
EXPLORATIONS - Exploring the Art and History of Printmaking STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in Washington, D.C. there is a colorful and expressi
2011年VOA慢速英语(十)月
[00:00.00]Module 8 IN A MUSEUM [00:07.39]UNIT 1 I'm really excited to be here. [00:12.59]1 Listen and read. Then say. [00:17.92]Thanks for bringing me to the Science Museum [00:20.03]today, Dad. [00:21.66]I'm really excited to be here. [00:24.25]Ther
外研社新标准初中英语九年级
News Report Australian Waterspout Script A big twister struck the Sydney to Hobart yacht race late on Wednesday, nearly knocking out the team highly favored to win, Nicorette. Disaster struck the Swedish maxi yacht off the east coast of Australia, te
新视野大学英语：视听说教程 4
1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way
突破英文词汇
Jason Lewis pedals his boat up the river Thames After 13 years and 46,000 miles (75,00km) a British adventurer has completed a round-the-world journey using human power alone. Jason Lewis, 40, crossed five continents, two oceans and a sea to become
Take Away English
THE MAKING OF A NATION - June 13, 2002: World War Two / Science By David Jarmul Explosion of the first atomic bomb, July 16, 1945, in the New Mexico desert. (Picture - Library of Congress) VOICE 1: TH
The Making of a Nation
THE MAKING OF A NATION - The American Civil War: An Anti-War Movement in the North Turns Violent By Frank Beardsley Broadcast: Thursday, April 07, 2005 (MUSIC) VOICE ONE: THE MAKING OF A NATION -- a p
The Making of a Nation
VOICE ONE: Im Steve Ember. VOICE TWO: ''Revolt on the Amistad,'' silkscreen print by Jacob Lawrence And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in Washington, D.C., you can see a colorful and expres
VOA慢速英语2009年（九）月
Education Report - A Living Science Exhibit Grows at a Museum This is the VOA Special English Education Report. Outdoors, in the open air, seems like a natural place to study natural science. It also makes sense in a place like Southern California wh
2012年VOA慢速英语(六)月
By Scott Stearns Dakar 25 September 2009 People waiting to be registered for assistance in the city of Rosso, Mauritania, 25 Sep 2009 Flooding in Mauritania may delay the start of the school year as people displaced by heavy rains are living in clas
VOA标准英语2009年(九月)
US Jobs Data Adds To Global Recession Fears The U.S. government's closely-watched monthly employment report has become an important barometer of the state of the world's largest economy. Combined with the debt crisis in Europe, and manufacturing slow
VOA标准英语2012年(七月)
VOICE ONE: I'm Steve Ember. VOICE TWO: ''Revolt on the Amistad,'' silkscreen print by Jacob Lawrence And I'm Barbara Klein with EXPLORATIONS in VOA Special English. At the National Gallery of Art in W
2006年慢速英语(十二)月
By Benjamin Sand Islamabad 06 March 2006 Maroufa, 4, receives polio vaccination in Kabul, Afghanistan, Sunday, March. 5, 2006 Afghan volunteers are vaccinating millions of children in a nationwide ant
2006年VOA标准英语（三月）
By Nancy-Amelia Collins Jakarta 12 June 2007 The United Nations says Indonesia must take concrete steps to protect human rights defenders and counter what it says is the culture of impunity often enjoyed by the authorities. But, as VOA's Nancy-Amelia
2007年VOA标准英语（六月）
Mauritania's former military ruler joined his county's presidential race late Saturday. Next month's election is part of a power-sharing deal between the country's current military rulers and their political opponents. Colonel Ely Ould Mohamed Vall
VOA标准英语2009年(六月)
Baby Bats Can Learn Different Dialects Bats are sophisticated communicators. And not just when theyre in vampire form. New research finds that Egyptian fruit bats actually have regional dialects, depending on the bat chatter that surrounds them as th
2018年科学美国人1月
unit 409 报错电话号码（2） dialogue 英语情景对话 A:May I help you? A:可以为您效劳吗？ B:I'd like to place a person-to-person call to Mrs. tengvall in Sweden. B:我想打一个私人电话给瑞典的唐瓦夫人。 A:Could I hav
高频英语口语对话