单词：soil erosion factor parameter
单词：soil erosion factor parameter 相关文章
[00:01.44]In fact, it is you who have the most important [00:04.66]role to play in stopping Yellow River erosion. [00:08.19]Did you know the importance of your 5 yuan? [00:11.40]For a start, it can buy you a tree, [00:13.86]which will help make soil
北师大版高中英语模块4
[00:03.33]Unit 10 Money Lesson 3 Your money [00:09.65]When less is more [00:12.04]What can you do with 5 yuan? [00:14.39]Not a lot, you may think. [00:16.20]Well, if buying a bag of candies [00:18.28]or cookies doesn't appeal to you, [00:20.52]how ab
北师大版高中英语模块4
This is the VOA Special English Agriculture Report. To call something marginal means it is not very good. Farmers have their own way to define marginal land: It is the last to be planted under good conditions, and the first to be avoided under poor c
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AGRICULTURE REPORT - Farming Marginal Lands By Mario Ritter / Broadcast: Mon, 5 Nov 2007 16:00:00 UTC This is the VOA Special English Agriculture Report. An Australian farmer stands on land damaged by lack of rain last year To call land marginal mea
VOA慢速英语2007年（十一）月
By Gilbert da Costa Abuja 31 October 2009 Massive environmental degradation has been the subject of heightened concern across southeast Nigeria as the region continues to be plagued by an erosion crisis that has grown worse over the years. Driving a
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Dr. Wangari Muta Maathai was born in 1940 in a village in Kenya. In 2004, she became the first African woman to receive the Nobel Peace Prize. The judges valued her contribution to sustainable development, democracy and peace. She was also a member o
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