单词：schoenflies space group
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With a strong poison spray aimed at a bunch of flying insects, it's easy to imagine several of them falling together at the same time. Because flies are small and dirty creatures, we do not much care if many die at once. However, when it comes to hum
大千世界
Underground Station in Capital to Become Arts Center 资本运作令旧车站成为艺术中心 The Dupont Circle park in Washington DC is a busy, crowded place. Popular restaurants and businesses around the circle attract many city residents and vis
2015年VOA慢速英语(八)月
This is Whats Trending Today... The United States named 12 new astronauts this week. The astronauts will work for NASA, the American space agency. The astronaut class of 2017 includes doctors, scientists, engineers, pilots and military officers. Seve
2017年VOA慢速英语(六)月
By Deepak Dobhal Washington, DC 07 December 2006 watch New Space Station Astronaut When the space shuttle Discovery rockets into space on Thursday, onboard will be a new crewmember for the International Space Station -- Sunita Williams. The 41 year
2006年VOA标准英语（十二月）
By VOA News 12 February 2008 Astronauts from the space shuttle Atlantis are formally opening the new laboratory at the International Space Station Tuesday. Crew members set up electrical and data lines linking the new Columbus laboratory to the stati
VOA常速英语2008年（二月）
By Lisa Schlein Geneva 10 October 2007 The international humanitarian organization Doctors Without Borders says it is launching a worldwide appeal aimed at getting donors and governments to support a campaign to provide ready-to-use food to malnouris
2007年VOA常速英语（十月）