太古宙 tàigǔzhòu Archaean Definitions Defs Origin Strokes Stroke Words Sentences Sents 太古宙 tàigǔzhòu Archaean the Archean geological eon, spanning from roughly 4,000 to 2,500 million years ago Frequency Written text 0.058 per million Sources Frequency data BCC Corpus (BLCU)
太古宙 tàigǔzhòu Archaean the Archean geological eon, spanning from roughly 4,000 to 2,500 million years ago Frequency Written text 0.058 per million Sources Frequency data BCC Corpus (BLCU)
