n (1) 雾(thick mass of very small water drops in the air，esp near the surface of land，water，etc which makes it difficult to see) [U]：dense～浓雾;drive slowly in～在雾中缓慢行驶;Around midday，the～lifted. 约正午时分，雾散了。When the～closed in，we couldn't see the top of the hill. 大雾降临时，我们看不到山顶。〖同〗mist;

(2) 一场浓雾(period or time of very thick mist) [C]：have heavy/bad～s on the coast in winter. 冬天这个海岸有大雾/浓雾;

(3) 雾气;烟雾(any cloud of material，such as dust or smoke that floats in the air) [C]：a dust～一片尘雾;a～of insecticide spray 杀虫剂的喷雾;patches of～成片的雾气;heavy/bad～s 大雾/浓雾;〖同〗smog;

(4) (照相底片上)模糊(hazy effect on a developed negative or positive，caused by improper handling during development，etc) [C，U];

in a fog 迷惑，困惑，不清楚：The mathematics lesson put me in a ～. 这堂数学课令我茫然。

→′foggy adj 下雾的;含糊的;′fog-bank n 雾堤;′fog-bound adj 陷于浓雾之中的;′fog-horn n 雾号;′fog-lamp n 雾灯;

v (1) 雾气笼罩，有雾气(cover or become covered with or as if with fog) [I，I+adv，T+n，T+n+adv]：The car windows/windscreens are～ging up/over. 汽车玻璃/挡风玻璃上覆盖了一层雾气。Her glasses were～ged up with steam. 她的眼镜被水蒸汽蒙上一层雾气。(steam)～(up)sb's glasses/the bathroom mirror (蒸汽)使某人的眼镜/浴室里的镜子蒙上了一层雾气;(foul weather)～the port/the airport (坏天气)使港口/机场笼罩在雾中;〖反〗clear，brighten，purify;

(2) 1) 使困惑不解(bewilder or confuse) [T+n]：(problem)～the mind (这个问题)使人感到困惑;be～ged by sb's refusal/the instruction 被某人的拒绝/某项指令弄糊涂了;〖同〗bewilder，confuse;〖反〗clear，certain; 2) 使含糊，混乱(make uncertain or unclear;confuse) [T+n]：(alcohol/lack of sleep)～sb's mind (酗酒/睡眠不足)使某人头脑不清楚;〖同〗bewilder，confuse，obscure，cloud，darken;

(3) (使照片底片)变得模糊不清((cause a negative) to become affected by fog) [T+n，I]：The light will～film. 光会使胶片变得模糊不清。

【辨异】 fog与mist和haze都指由靠近地面及地面上方的水蒸汽形成的雾气。但它们各自所指的雾气的浓度不同。fog 雾气的浓度最浓。haze 是指薄雾。当天气非常热的时候，haze (雾气)也会产生，如：a heat-haze (热气)。还有smog (雾气)是指一种有害的烟和雾的混合气体，经常产生于工业城市。