沉湎于

I was wallowing in the luxury of the hotel.

我湎于旅馆豪华奢侈。

She wallows in nostalgia for the past.

她湎于对过去怀恋。

So take advantage of the moonless skies in the evenings this week, and go stargazing.

所以乘这个星期夜晚没有月亮，湎于星辰吧。

They abandon themselves to drinking.

他们湎于饮酒。