二迭纪 èrdiéjì Permian Definitions Defs Origin Strokes Stroke Words Sentences Sents 二 èr numeral two the number two; 2迭 dié to alternate (bound form) to alternate; to change; to rotate; to take turns纪 紀 jì noun era (bound form) a period of time, such as a twelve-year cycle, a geological period, or a century; era
