多发 duōfā frequent occurrence Definitions Defs Origin Strokes Stroke Words Sentences Sents 多发病 duōfābìng common disease frequently occurring disease多发性硬化症 duōfāxìngyìnghuàzhèng multiple sclerosis 多发性骨髓瘤 duōfāxìnggǔsuǐliú multiple myeloma (medicine) multiple myeloma