短語詞組短語middle -high german 中世紀高地德語High German sound shift 高地德語子音推移High German language 德語High German - rum 高德History of High German 德語史Old High German Language 古高地德語Middle High German 中古高地德語high german languages 高地德;高地德語Old High German 古高地德語 返回 High German