太古代 tàigǔdài Archean Definitions Defs Origin Strokes Stroke Words Sentences Sents 太古代 tàigǔdài Archean The Archean eon of geological time, occurring before 2.5 billion years ago. Frequency Written text 0.078 per million Sources Frequency data BCC Corpus (BLCU)
太古代 tàigǔdài Archean The Archean eon of geological time, occurring before 2.5 billion years ago. Frequency Written text 0.078 per million Sources Frequency data BCC Corpus (BLCU)
