downfallWiktionary 原文英美n.衰败，大雨中文释义来自 ECDICT构词拆解downdown-前缀fallfall词干down-Decrease. · Lower position or direction, literally or figuratively.词源说明From down- + fall. In this spelling, from 16th century; spelled as two words from 13th century.释义名词noun1A precipitous decline in fortune; death or rapid deterioration, as in status or wealth.2The cause of such a fall; a critical blow