他沉湎于过去的记忆。He had clung to the remembrance of things past.沉湎于虚幻的梦想而忘记现实的生活，是毫无益处的。It does not do to dwell on dreams and forget to live.她沉湎于对过去的怀恋.She wallows in nostalgia for the past....

“沉湎于”的英语可以翻译为：indulge in，abandon oneself to，immersed ...