英文是：on a diet。解释：on a diet 英[ɔn ə ˈdaiət] 美[ɑn e ˈdaɪɪt] [词典] 节食; [例句]Have you been on a diet? You've lost a lot of weight你最近在节食吗？你瘦了好多。He has been on a diet for as long as any of his friends can remember 在朋友的记忆中，他一直都在节食。I'm forever on a diet, since I put on weight easily 我永远都在减肥，因为我很容易长胖。He lived on a diet of water and tinned fish 他仅靠喝水、吃鱼罐头过活。'He'll have to go on a diet,' Ballard quipped “他得减肥啦，”巴拉德俏皮地说。【TSD，M】
深夜地黄昏
