前寒武纪 qiánhánwǔjì Precambrian Definitions Defs Origin Strokes Stroke Words Sentences Sents 前寒武纪 (前寒武紀) qiánhánwǔjì Precambrian pre-Cambrian, the geological period before approximately 540 million years ago Sources Definitions CC-CEDICT
前寒武纪 (前寒武紀) qiánhánwǔjì Precambrian pre-Cambrian, the geological period before approximately 540 million years ago Sources Definitions CC-CEDICT
