20131207VOA慢速自读+跟读第三次(1小时完成) Time--One of the Great Mysteries of Our Universe This is SCIENCE IN THE NEWS, in VOA Special English. I'm Steve Ember. This week our program is about a mystery as old as time. Bob Doughty and Sarah Long tell about the mystery ...
20131130,VOA慢速。自读+跟读第二次(每周加2次VOA慢速,科技2篇) NASA's Final Apollo Missions: The Last Footsteps on the Moon I'm Shirley Griffith. And I'm Steve Ember with EXPLORATIONS in VOA Special English . Today we tell about the flights that follow ...