2009-11-10 Norman Borlaug, Pioneer of the Green Revolution
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I’m Barbara Klein. VOICE TWO: And I’m Doug Johnson. Today we tell about the American plant scientist Norman…
VOA英语教学网 - VOA LEARNING ENGLISH
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I’m Barbara Klein. VOICE TWO: And I’m Doug Johnson. Today we tell about the American plant scientist Norman…