英文：A federation or tribe, especially one composed of Native Americans.
中文：部落联盟部落联盟, 尤其是由美洲印第安人组成的联盟
英文：An association or federation of five governments, each ruled by a different leader.
中文：五国联盟五个政府的联合或联盟, 每个政府由各自的领袖领导
英文：A principle of allowing each state in a nation or federation to act independently of the central authority, especially in promoting its own economic interests.
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