蝶窦 diédòu sphenoidal sinus Definitions Defs Origin Strokes Stroke Words Sentences Sents 蝶窦 蝶竇 diédòu sphenoidal sinus sphenoidal sinus; one of the paired sinuses located within the body of the sphenoid bone
蝶窦 蝶竇 diédòu sphenoidal sinus sphenoidal sinus; one of the paired sinuses located within the body of the sphenoid bone
