Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(285) / 评论(0)

(科普英语)Earth and Sky

词汇王TOELF＆TOELC unit38

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit36

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit35

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit34

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit33

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit32

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词汇王TOELF&TOELC

词汇王TOELF＆TOELC unit31

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词汇王TOELF&TOELC

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词汇王TOELF&TOELC

知性英语－Acid rain 酸雨

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(330) / 评论(0)

知性英语

VOA常速英语2007年-Acid Attacks Are a Growing Form of Revenge in U

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(240) / 评论(0)

VOA常速英语2007年（十一月）

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