pan american union
柯林斯词典
1. N the secretariat and major official agency of the Organization of American States 泛美联盟; 美洲国家组织的秘书处和主要官方机构
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1. N the secretariat and major official agency of the Organization of American States 泛美联盟; 美洲国家组织的秘书处和主要官方机构