流行病学调查 liúxíngbìngxuédiàochá epidemiological investigation Definitions Defs Origin Strokes Stroke Words Sentences Sents 流行病学 流行病學 liúxíngbìngxué epidemiology the branch of medicine that studies the causes and distribution of diseases in populations to develop prevention strategies调查 調查 diàochá verb to investigate to investigate; to survey; to inquire into actual conditions
