额窦 édòu frontal sinus Definitions Defs Origin Strokes Stroke Words Sentences Sents 额窦 (額竇) édòu frontal sinus Frequency Written text 0.110 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
额窦 (額竇) édòu frontal sinus Frequency Written text 0.110 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
