黑雾
are still somersault , but that color is turned to be gray of desolate and black of sad .───依然是云雾翻沸，那颜色却是悲凄的灰与哀怨的黑了。
London used to be a city known for its "black fogs. "───伦敦的“黑雾”一向闻名。
London, England, has always been known for its "black fogs. "───英国伦敦一向以“黑雾”而闻名。
Distant walls disappear in a fog of dust as dense to the eye as the black fogs of old London.
black dogs───沮丧
black fog───黑雾
black flags───黑旗（表示囚犯已被处决）；海盗旗；黑旗令（赛车可能有故障）
black foxes───黑狐狸
black bags───黑暗之袋（非法秘密搜查）
black boys───黑孩子（书名）
black dog───沮丧
black fox───黑狐狸
black ops───黑色行动（游戏名）