化为乌有

huà wéi wū yǒu

(idiom) to go up in smoke; to vanish

huà

to make into

wéi

variant of 為|为[wei2]

abbr. for country names that begin with 烏|乌[wu1]: Ukraine 烏克蘭|乌克兰[Wu1 ke4 lan2], Uzbekistan 烏茲別克斯坦|乌兹别克斯坦[Wu1 zi1 bie2 ke4 si1 tan3] etc

yǒu

to have; there is