The winter dense fog appeared frequently in Hangzhou in 1998 and its reason was of meteorological factors and environmental pollution factors.
杭州市1 998年冬季大雾频发，这是气象因素与环境污染共同作用的结果。
Winter Fog After two or three days of unseasonable and depressing warmth, with lowering but not rainy sky, I woke this morning to find the land covered with a dense mist.
在两三天来的不合时节并令人压抑的温暖过后， 天空阴霾但并不多雨， 今早我醒来发现地 面上罩着一层浓雾。
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