单词：piedmont alluvial plain
单词：piedmont alluvial plain 相关文章
By Jeff Swicord Washington 05 July 2007 As energy prices continue to rise, more and more housing consumers in the U.S. are looking for ways to save money on home energy costs. VOA's Jeff Swicord reports on an environmentally friendly, green building
2007年VOA标准英语（七月）
Better known for its diamond fields, gold exploration and mining in Sierra Leone is on the increase. The British company, Cluff Gold, has announced it will build a mechanized gold mine in the southern Kangari hills after finding large deposits of gol
VOA标准英语2010年(四)月
在意大利的小镇，人们通常喜欢用橙子来举办一场狂欢。这是小镇每年最大的盛宴，全镇的居民都会前来参加，他们用橙子嬉戏打闹，不把每个人都染成橙色决不罢休。这真的是大家看下图，
卡卡课堂早餐英语
They may be a little safer here. But the food in the forest is far less nutritious than on the riverbanks. If they want to eat well and avoid wolves this winter, they'll need to keep on moving. As the elk move gradually downwards, they follow the riv
自然百科2012年
By Naomi Schwarz Dakar 04 December 2007 Diamonds from Sierra Leone have fueled the country's gruesome civil war and enriched warlords. Now, the government and activists are trying to make sure the profits from Sierra Leone's post-conflict diamonds he
VOA常速英语2007年（十二月）