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Broadcast: January 27, 2003 By Jill Moss This is the VOA Special English Development Report. Researchers have discovered a simple answer to a huge problem in developing countries. They have found that

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Earth and Sky:Sunscreened Plants 遮光植物

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发表于:2019-01-03 / 阅读(157) / 评论(0)

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This is the VOA Special English Development Report. Every day, millions of people around the world drink water from wells that are polluted with high levels of arsenic. Arsenic is an element that can be released into groundwater by soil and rocks. Ov

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This is the VOA Special English Development Report. Jeffrey Schwarz coordinates the water filter project for North America from the Carnegie Library Pot Shop, adapting technology developed in Central America during Hurricane Mitch in 1998 The Braddo

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Now one of the things that I do is I don't use any filters, I don't use anything to 我录制的所有视频都没有做过特效处理，什么处理都没有 I try to capture the moment as much as possible as the way that I saw it with my own eyes.

发表于:2019-01-18 / 阅读(135) / 评论(0)

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DEVELOPMENT REPORT – Cloth Filters Fight Cholera By Jill Moss Broadcast: Monday, February 14, 2005 I'm Gwen Outen with the VOA Special English Development Report. A few years ago, researchers discov

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Todd: So, hey, Rebecca, speaking of environmental stuff, I was reading about a drought in Australia. You guys have a serious drought problem with water? Rebecca: Yeah, we do. We've had a drought for some time now and it seems to be getting worse and

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