废寝忘食用英语怎讲？

字面翻译：neglect one's meals and sleep

在句子中可以这样翻译

Swordsmen novels can make me read day and night with no thought for eating or sleeping.
武侠小说可以让我看得废寝忘食。

废寝忘食
forget food and sleep

1.so absorbed (in a pursuit) as to neglect sleep and meals
2.to forget sleep and food
^_^