废寝忘食
1.so absorbed(in a pursuit)as to neglect sleep and meals
2.to forget sleep and food
制作模型火车是他废寝忘食的爱好.
Building model trains is his consuming passion
武侠小说可以让我看得废寝忘食.
Swordsmen novels can make me read day and night with no thought for eating or sleeping
他专心致志于这项工作,到了废寝忘食的地步.
Absorbed in the work, he neglected food and sleep