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BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. BOB DOUGHTY: And I'm Bob Doughty. This week, we will tell about the science of tornadoes. Tornadoes have been observed in many parts of the world. But the storms ar
发表于:2019-01-12 / 阅读(241) / 评论(0)
2010年VOA慢速英语(五)月
2010年VOA慢速英语(五)月