“A more perfect union”的意思、由来-开放百科全书

词条	A more perfect union
释义	> A More Perfect Union {{R from other capitalisation}}
随便看	Protected areas of Brunei Protected areas of Burma Protected areas of Cambodia Protected areas of China Protected areas of Colorado Protected areas of Germany Protected areas of Hong Kong Protected areas of Laos Protected areas of Lebanon Protected areas of Libya Protected areas of Namibia Protected areas of Panama Protected areas of Papua New Guinea Protected areas of Qatar Protected areas of Sierra Leone Protected areas of Singapore Protected areas of Suriname Protected areas of Thailand Protected areas of the Azores Protected areas of the Philippines Protected areas of Ukraine Protected areas of Vietnam Protected areas of Wales Protected areas of Western Australia Protected area with sustainable use of natural resources

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。