wallow
verb [ I ] uk/ˈwɒl.əʊ/ us/ˈwɑː.loʊ/
（尤指动物在泥、沙或水中）打滚
(especially of some animals) to lie or roll around slowly in deep, wet earth, sand, or water
a hippopotamus wallowing in mud 在烂泥中打滚的河马
Phrasal verb
wallow in something 纵情享受;放纵于
to allow yourself to enjoy something completely
My idea of a holiday is to stay in a five-star hotel and just wallow in luxury for a week. 我的假期设想是预订一家五星级的酒店，纵情享受奢华的一周。
沉湎于，陷于
to remain in an unhappy emotional state without trying to get out of it, as if you are enjoying it or trying to get sympathy from other people
I wish she'd do something to help herself instead of just wallowing in self-pity! 我希望她能做一些自助的事，而不是沉湎于自怨自艾之中！