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Narrator: Exercise 3.9. Lecture 3: Electric cars? Solar-powered buses? When most people imagine solutions to the problems of city air pollution they probably think of electricity and solar power. But the problem with an electric car is that the elect

发表于:2018-12-30 / 阅读(112) / 评论(0)

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This is the VOA Special English Development Report. A simple water pump is helping to improve the lives of poor families in several Asian and African countries. A treadle pump in vegetable fields in Bangladesh The treadle pump is based on a design d

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发表于:2019-01-13 / 阅读(120) / 评论(0)

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发表于:2019-01-14 / 阅读(107) / 评论(0)

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发表于:2019-01-18 / 阅读(90) / 评论(0)

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A: Howdy! Nice car! What seems to be the problem? B: I dont know! This stupid old car started spewing white smoke and it just died on me. Luckily, I managed to start it up and drive it here. What do you think it is? A: Not sure yet.How about you pop

发表于:2019-01-20 / 阅读(54) / 评论(0)

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发表于:2019-01-26 / 阅读(84) / 评论(0)

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今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t

发表于:2019-02-02 / 阅读(111) / 评论(0)

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发表于:2019-02-03 / 阅读(74) / 评论(0)

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打榜热歌：B.o.B - Magic 新人B.o.B的单曲以迅雷不及掩耳之速连续在Billboard上打榜，曾创下两首单曲同时挺进前十的好成绩，本周的这首Magic目前还在20-10之间徘徊，不过按照他的势头，估计几周之

发表于:2019-02-07 / 阅读(70) / 评论(0)

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Magic B.o.B ft. Rivers Cuomo I've got the magic in me Everytime I touch that track it turns into gold Everybody knows I've got the magic in me When I hit the flow the girls come snappin' at me Now everybody wants a burst of magic Magic, magic, magic

发表于:2019-02-07 / 阅读(89) / 评论(0)

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饶舌:B.o.B - Magic 相关介绍：他起初是一个一直给很多说唱大佬唱伴唱和桥段的幕后歌手，凭借着自身的努力，终于厚积而薄发，出了一张可以令他从幕后走到台前的专辑。首播主打《Nothin' O

发表于:2019-02-07 / 阅读(70) / 评论(0)

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Kenyan Farmers Going Green As scientists and political leaders around the world grapple with the issue of climate change, many farmers are looking at technologies that rely on renewable energy for their operations. Farmers in Kenya are now using two

发表于:2019-02-08 / 阅读(95) / 评论(0)

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发表于:2019-02-11 / 阅读(84) / 评论(0)

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