发生率 fāshēnglǜ incidence Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 这种疾病的发生率正在下降。 zhè zhǒng jíbìng de fāshēnglǜ zhèngzài xiàjiàng. The incidence of this disease is decreasing. Source: Dong Chinese Dictionary