day-to-day /ˌdetəˌde/
  (a.)日常的
  day-to-day
       adj : occurring or done each day; "a daily record"; "day-by-day
             labors of thousands of men and women"- H.S.Truman; "her
             day-after-day behavior"; "an every day occurrence"
             [syn: daily, day-after-day, every day]