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It's the land we love and the land we think we know. We see America's breathtaking landscapes and wildlife as timeless, but the truth is very different. Its unique geography drives the forces of nature to extremes, shaping and reshaping the land and throwing down new challenges for life.美丽美利坚无弹窗在线观看地址来源于互联网，西钰影院免费提供纪录片《美丽美利坚》全集高清完整版在线观看服务。