以How to keep fit为题,在70字左右的小短文提示：1.早睡早起,保证充足的睡眠2.多锻炼3.多吃新鲜水果蔬菜,少吃junk food4.每天保证充足的饮水

One way to keep fit is to sleep early at night and get up early in the morning.This ensures that the sleep hours are maintained at a good level.One also needs to exercise more to keep fit.But most imp...