单词：concrete surface joint cutter
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New NASA Mars Mission Will Study Deep Under Planets Surface NASA, the American space agency, is sending a robotic scientist to Mars. It will dig deeper than ever before to study the planets geological activity. The Mars InSight spacecraft launches Ma
2018年VOA慢速英语(五)月
New Words 6A @ earthquake n. [C] (also quake) a sudden shaking of the Earth's surface 地震 @ detect vt. notice or discover sth. that is difficult to see, feel, etc. 发现；查出 @ experimental a. used for, relating to, or resulting from experime
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New Concrete Recipes Could Cut Cracks能够对抗公路裂化的新型混凝土配方 There's a stretch of highway in Pennsylvania, along U.S. 422. And like every probably 20 feet you see a big pothole or cracking at the joint. Like everywhere. It wa
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The StonecutterOnce upon a time there was a stone cutter. The stone cutter lived in a land where a life of privilege meant being powerful. Looking at his life he decided that he was unsatisfied with the way things were and so he set out to become the
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Young Technology Expert Works to Stop Car Thefts Kenya is East Africas largest economy. Its capital Nairobi is growing quickly. But so is the citys crime rate -- the Nairobi Metropolitan Crime Observatory says thieves steal an average of 10 cars each
2014年VOA慢速英语(十一)月
By Kari Barber Dakar 01 November 2007 European Union officials say plans are in place for a joint European Union-African Union summit to be held later this year. However, Senegalese officials said in a meeting with EU leaders in Dakar late Wednesday
VOA常速英语2007年（十一月）