乌 ㄨ wū 烟 ㄧㄢ yān 瘴 ㄓㄤ ˋ zhàng 气 ㄑㄧ ˋ qì 烏 ㄨ wū 煙 ㄧㄢ yān 瘴 ㄓㄤ ˋ zhàng 氣 ㄑㄧ ˋ qì billowing smoke (idiom) foul atmosphere (fig.) murky atmosphere in a turmoil