单词：perloff
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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)
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
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
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