单词：perlita
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AS IT IS 2015-09-30 Glider Plane to Soar Stratosphere for Data Gliders are light aircraft that fly with no engine. They are pulled by a powered plane into the sky and set free to fly on air currents. They soar on wind currents called mountain waves.
2015年VOA慢速英语(九)月
Project Aims to Study Stratosphere Via Aerospace Firm's Glider A glider designed by Airbus Group successfully completed its maiden flight Wednesday ahead of next years attempt to reach the edge of the space. The ultimate goal is to study the stratosp
VOA标准英语2015年(九月)
伊朗和以色列：两国关系紧张且矛盾不断。然而，在这些剑拔弩张的敌对言词下，隐藏着一段不为人熟知的合作史，甚至可以说是友谊史。特里达帕西用这个内容丰富的演说，展示给我们一个
TED公开课:和平使者
Has that slowed down development of PHP 6? Its been in progress for two and a half years PHP 6的开发速度放慢了吗？已经开发了两年半的时间了 Whats slowing down development on 6 isnt decision making: 放慢PHP 6的开发速度并不是
创业成功人士访谈录
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美国加州科学教材California Science GK
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美国加州科学教材California Science GK
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美国加州科学教材California Science GK
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美国加州科学教材California Science GK
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美国加州科学教材California Science GK
VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. This week, we tell about vitamins. (MUSIC) VOICE ONE: Vitamins Many jobs must be done with two people. One person takes the lead. The
VOA慢速英语2009年（四）月
空客新飞机挑战新高度 Gliders are like engineless aircraft that are towed by powered planes to a certain height. From there, they use natural updrafts, also called mountain waves, to soar to the sky. That is why their wings are so much longe
VOA标准英语2016年(一月)
Antibiotic Resistance Requires Fast Actions 抗生素耐药问题性亟待迅速行动 The World Health Organization issued a wake-up call April 30 when it reported that we have now entered a post-antibiotic period. What this means is that some commo
VOA标准英语2014年(五月)
患者、医生与科研人员需迅速应对细菌抗药性 The World Health Organization issued a wake-up call April 30 when it reported that we have now entered a post-antibiotic period. What this means is that some common bacterial infections no
VOA双语新闻 2014年5月
JEFFREY BROWN: Next new revelations about the government's ability to crack through important Internet privacy safeguards. Hari Sreenivasan has the story from our New York studio. HARI SREENIVASAN: Like other surveillance stories in recent weeks, the
PBS访谈环境系列
By Challiss McDonough Cairo 09 May 2006 Egyptian police on Tuesday said they killed the suspected leader of the militant group blamed for last month's deadly bombings in the Red Sea resort of Dahab. P
2006年VOA标准英语（五月）
US kids raise money, collect goods for their East African pen pals Jan Sluizer | Gulu, Uganda 02 August 2010 Photo: Courtesy Diane Kroska A Ugandan student reads a letter from her American pen pal. She says the stories she heard about the widespread
VOA标准英语2010年(八)月
The United States Wednesday vigorously condemned the military overthrow of the Mauritanian government and called for the restoration of democratic rule. The coup could lead to sanctions by the United States and European Union. VOA's David Gollust re
VOA标准英语2008年（八月）
In Angola, the opposition UNITA party has accepted defeat in the country's legislative elections, after the electoral commission said that - with nearly 80 percent of the votes counted - the ruling MPLA party was leading with more than 80 percent an
VOA标准英语2008年（九月）
Fair trade has become an increasingly important campaign in today's global market place. Its focus is the rights of millions of workers in developing countries who earn low wages and face harsh working conditions to produce low cost products many of
VOA标准英语2010年(三月)
Islamic militants have captured a remote military outpost in northwest Pakistan near the Afghan border. 伊斯兰激进分子在巴基斯坦西北部靠近阿富汗边界的边远地区，夺取了一个政府军的据点。 The Pakistan military sai
VOA双语新闻 2008年1月