waste or save
浪费还是节约
father: oh, jack, you have slept away the whole morning. don't you know you are wasting time?
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？
jack: yes, dad. but i've saved you a meal, haven' i?
杰克：我知道，爸爸。可我还给您节省了一顿饭呢，是不是？