北美五大湖:在线播放
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北美五大湖:最新迅雷BT资源
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北美五大湖:剧情介绍
Plot Summary:Carved by the retreat of a two-million-year-old glacier, North America's five great lakes, Superior, Michigan, Huron, Erie and Ontario; form the largest freshwater ecosystem on Earth.
关键词：北美五大湖纪录片北美五大湖地理位置北美五大湖分别是哪五大湖北美五大湖是什么作用的产物Carved by the retreat of a two-million-year-old glacier, North America's five great lakes, Superior, Michigan, Huron, Erie and Ontario; form the largest freshwater ecosystem on Earth.