Waste or Save

Father: Oh, Jack you have slept away the whole morning. Don't you know you are wasting time?Jack: Yes, Dad. But I"ve saved you a meal, haven't I?父亲：噢，杰克，你又睡了一上午。难道你不知道你这是在浪费时间吗？杰克：我知道，爸爸。可我还给您节省了一顿饭呢，是不是？