单词:plains and basins
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[00:04.78]Lesson 49 1 Reading comprehension [00:11.86]Read the text fast to get a general idea. [00:17.32]Which of the following subjects are mentioned in the text? [00:22.60]Population/History/Government/Sports/Weather/Radio and TV [00:32.76]Transpo
[00:13.24]高级英语学生用书 第三册(下) [00:26.49]Unit 13 The USA [00:28.85]第十三单元 美国 [00:31.22]Lesson 49 [00:32.90]第四十九课 [00:34.59]1 Reading comprehension [00:36.81]1 阅读理解 [00:39.03]Read the text fast to
VOICE ONE: This is Rich Kleinfeldt. VOICE TWO: And this is Sarah Long with the MAKING OF A NATION, a VOA Special English program about the history of the United States. Today, we tell about early Native Americans. VOICE ONE: Scientists believe that
THE MAKING OF A NATION - American History: Westward Expansion Brings Explorers, Settlers in Contact with the Plains Indians Welcome to THE MAKING OF A NATION American history in VOA Special English. Im Steve Ember. This week in our series, we look at
River Basins Could Help Ensure Food Security The worlds major river basins may hold the key to doubling food production in the coming years. The idea was discussed at the 14th World Water Congress in Brazil. A new report says while water shortages do
淡水FRESHWATER 淡水资源Freshwaterresources 谈水保护Conservationoffreshwater 水坝Dams 冰Ice 湖泊Lakes 自然排水系统Naturaldrainagesystems 河流流域开发Riverbasindevelopment 河流