VOA慢速英语:Yellowstone: America's First National Park(翻译)

continental divide - n. the watershed of North America made of the line of highest points of land separating the waters flowing west from those flowing north or east matching with various ranges of the Rockies, extending from Canada to South America

sanctuary - n. a place where someone or something is protected or given shelter

habitat – n. the place or type of place where a plant or animal naturally or normally lives or grows

bugle – n. the call of the bull elk

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