confine oneself within doors; never step out of doors ❍ 听说你近来～，杜门谢客，你专心致志研究什么呢？ They say that you confine yourself within doors and close your door to visitors. What sort of studies are you burying yourself in?/他那二十多年足不窥户的生活简直是不折不扣的坟墓生活！ (茅盾《子夜》24) He hasn’t set foot outsi de the house for the last twenty years or so. It’s been nothing short of a living grave.
足不出户zú bù chū hù
形容不出门。never to go out, confine oneself within doors, keep the house