Where purple martins had once laid their eggs in hollow threes, in time, they came to rely almost totally on people to provide nests for them. These artificial nests were made from dried out squashes known as gourds. The shape made them perfect nesti

发表于:2019-01-23 / 阅读(61) / 评论(0) 分类 探索与发现2013年

At first, the Europeans relied heavily on local food supply by native people. But as they settled in, their farming practices began to shape the landscape of North America. The plow allowed them to farm larger areas of land, helping to feed the expan

发表于:2019-01-23 / 阅读(69) / 评论(0) 分类 探索与发现2013年

英文歌词: Come to decide that the things that I tried Were in my life just to get high on When I sit alone come get a little known But I need more than myself this time Step from the road to the sea to the sky And I do believe it, we rely on When I

发表于:2019-02-11 / 阅读(88) / 评论(0) 分类 英文摇滚歌曲