n. a curve that reverses the direction of somethingn. an aberrant sexual practice; n. the action of perverting something (turning it to a wrong use)
n. 走入邪路, 败坏, 堕落, 违反常情, 变态, 反常, 误用, 滥用, 歪曲, 颠倒[医] 倒错, 乖常, 颠倒