epidemics/ˌep.əˈdem.ɪk/名词(疾病的)流行,传染a flu epidemic流感的传播泛滥;蔓延a crime/unemployment epidemic犯罪频发/大范围失业/ˌep.əˈdem.ɪk/形容词流行的;盛行的;肆虐的Crime and poverty are epidemic in the city.犯罪和贫穷如瘟疫一般在这个城市肆虐。想跟读,去练习