长沙市民在雨中骑行（2月20日摄）。当日，受强冷空气影响，湖南长沙出现明显的降温、降雨天气，城区雨雾蒙蒙。据当地气象部门介绍，随着一股冷空气的继续东移南下，长沙气温将进一步走低。气象部门提请交通、公安等部门做好道路结冰应急工作；驾车出行必须听从指挥，慢速行驶；行人出门注意保暖。新华社记者 龙弘涛 摄     Changsha people ride in the rain(2 months, and taken).the,By the strong cold air influence,Hunan changsha appear obvious cooling/Rainfall weather,City mist receive.According to the local meteorological department is introduced,With a cold air to south towards the east,Changsha temperature will further lower.Meteorological department to traffic/The public security departments to icy roads emergency work;Drive travel must obey the command,Slow speed;Pedestrian out pay attention to keep warm.The xinhua news agency LongHongTao perturbation

    雨雾中的长沙城区一处高架桥（2月20日摄）。新华社记者 龙弘涛 摄     Mist of changsha city at a viaduct(2 months, and taken).The xinhua news agency LongHongTao perturbation

    雨雾中的长沙湘江橘子洲拱极楼和附近沿江建筑（2月20日摄）。新华社记者 龙弘涛 摄     In the mist of changsha xiangjiang river JuZiZhou circumpolar floor and nearby buildings along the river(2 months, and taken).The xinhua news agency LongHongTao perturbation