云散yúnsàn像天空的云那样四处散开。{disperse like clouds}〈biaoqian>a)〈比喻fig.〉曾在一起的人分散到各地{(of people) scatter to different places}: 旧友～。{Old friends scattered like dispersing clouds.}〈biaoqian>b)〈比喻fig.〉事物四散消失{disappear; vanish; dissolve}: 烟消～。{melt into thin air; vanish like smoke; disappear like clouds}