航天史 hángtiānshǐ history of spaceflight Definitions Defs Origin Strokes Stroke Words Sentences Sents 航天史 hángtiānshǐ history of spaceflight noun the historical record and development of human space exploration. Frequency Written text 0.140 per million Sources Definitions AI-generated definitions Frequency data BCC Corpus (BLCU)
航天史 hángtiānshǐ history of spaceflight noun the historical record and development of human space exploration. Frequency Written text 0.140 per million Sources Definitions AI-generated definitions Frequency data BCC Corpus (BLCU)
