Read Edit View history 化为乌有 huàwéiwūyǒu vanish Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 化为乌有/ 化為烏有 huàwéiwūyǒu vanish idiom · to go up in smoke; to vanish 他的所有努力都化为乌有了。 Edit Delete References Add reference No references for this word.