The regulation method of unmarried cohabitation has developed into three categories in the world, the regulation method as marriage, the one as de facto status and the one as an independent system.是什么意思_The regulation method of unmarried cohabitation has developed into three categories in the world, the regulation method as marriage, the one as de facto status and the one as an independent system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句