单词：cordilleran system
柯地莱拉山系
单词：cordilleran system 相关文章
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
发表于:2019-01-03 / 阅读(131) / 评论(0)
VOA常速英语2013年(九月)
VOA常速英语2013年(九月)