Read Edit View history 研发 yánfā HSK6 R&D Origin Definitions Defs Strokes Stroke Words Sentences Sents 研发 研發 yánfā R&D verb research and development; to research and develop Frequency Movie subtitles 3.73 per million appears in 2% of films Written text 44.8 per million Details HSK 3.0 Level 6 Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)
研发 研發 yánfā R&D verb research and development; to research and develop Frequency Movie subtitles 3.73 per million appears in 2% of films Written text 44.8 per million Details HSK 3.0 Level 6 Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)