乌云[wū yún]词典black clouds; dark clouds; [电影]Nuvem网络WooYun; wooyun.org; Cloud乌云预示暴风雨的来临。The dark clouds threatened a big storm. 汉英大词典2月亮被乌云遮蔽了。The moon was covered by the dark clouds. 汉英大词典3乌云散了。Dark clouds dispersed. 汉英大词典4天上出现了一片乌云。Black clouds appeared in the sky.