According to experts, on the 4th of impact will be a cold Beijing, the northerly winds brought about 4 level to help whiffle Thursday, Beijing is expected to shake off heavy, heavy see clear days.

• 据专家介绍，4日起将有一股冷空气影响北京，带来4级左右的偏北风，帮助吹散大雾，北京才可望摆脱大雾，重见明朗天。