单词：watersheds
n. the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
n. an event marking a unique or important historical change of course or one on which important developments depend
单词：watersheds 相关文章
Wetlands Could Save Cities--and Money, Too 湿地不仅能保护人类还能替人类省钱 As Houston begins recovery efforts from Hurricane Harvey, a new storm threatHurricane Irmais barreling west towards the Caribbean and Florida. We have few def
2017年Scientific American(九)月
Bosnian Nature Reserve Threatened by Hydroelectricity Project 水电项目威胁波斯尼亚自然保护区 WASHINGTON, D.C. A small corner of paradise, called Hutovo Blato, is located in the southern part of Bosnia-Herzegovina. With its abundant veg
VOA常速英语2013年(十月)
Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year
2017年Scientific American(四)月
Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year
2017年Scientific American(四)月
Traditional Farm Practices Hold Promise for Philippines' Sick Rivers CORDILLERA, PHILIPPINES An estimated 80 percent of Asias rivers are considered sick, meaning they suffer from pollution and the uncoordinated development of water resources. As cons
VOA常速英语2013年(九月)
By Shelley Schlender Colorado 21 August 2007 The natural beauty of the American West is prompting more people to build homes in wildland areas. Wildfires are also natural in those areas, and as climate change increases temperatures and drought, blaze
2007年VOA标准英语（八月）
So what can I say? 那我能说什么 That there's a lot in flux, and it'll be tight. 不确定因素很多，票数胶着 Okay. Thanks. 好的，谢谢 Yeah. Sure thing. 应该的 Hey, Francis, it's me. 弗朗西斯，是我 Call me back. 回我电话
纸牌屋第一季
In the 1990s, China became the world's factory after its opening up and economic reform. Many coastal provinces in the east have accumulated a wealth of capital since then. In recent years, however, the country has been witnessing a wave of industria
英闻天下
U.S. Agency for International Development, or USAID, Mexico Mission Director, Thomas R. Delaney, joined Mr. Graco Ramirez, the Governor of Morelos State, in Mexico City on September 13th, to sign a Letter of Intention to cooperate between USAID and t
英语新闻