Democracy is the great ambition since the naissance of policy science. There were two traditional threads in the development of policy science:logical positive approach and normative approach.是什么意思_Democracy is the great ambition since the naissance of policy science. There were two traditional threads in the development of policy science:logical positive approach and normative approach.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句