三迭纪 sāndiéjì Triassic Period Definitions Defs Origin Strokes Stroke Words Sentences Sents 三 sān numeral three the number three; 3迭 dié noun repeatedly repeatedly; again and again; one after another纪 紀 jì noun era (bound form) a period of time, such as a twelve-year cycle, a geological period, or a century; era
