英语翻译第一,坚持冷水洗脸：冷水洗脸醒脑精神好,不仅锻炼耐寒能力,还能预防感冒.第二,适当户外活动：冬天户外活动很重要,

　　First,insist on washing the face with cold water,which is refreshing and gets you into a great mood,not only strengthening your resistance against cold but also prevent you from catching cold.
　　Second,go in for a proper amount of outdoor activities,which is important in winter and can prevent the occurence of chilblain.
　　Third,wash the feet with hot water,which has a double function of both keeping warm and inducing sleep at night.