请在按照大意的前提下改写以下这段话，使其分句更加清晰、表达更加贯通、语法更正确： Aboriginal people in North America developed various social, religious, and political systems. Despite the diversity of these systems, certain elements were common across the continent. Leadership was typically based on merit and consensus, and decision-making involved extensive discussion. Land was generally considered to be a shared resource, and the concept of private ownership of land was not widely recognized. Now, efforts are being made by some Indigenous groups to revive and preserve these systems as part of their cultural heritage.
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北美的原住民发展出了多样的社会、宗教和政治体系。尽管这些体系存在多样性，但整个大陆上仍有一些共同的元素。领导通常基于功绩和共识，决策过程涉及广泛的讨论。土地通常被视为共享资源，私有土地所有权的概念并不普遍。如今，一些原住民群体正努力恢复和保护这些体系，作为他们文化遗产的一部分。
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