She wallows in nostalgia for the past.

她沉湎于对怀恋。

I was overcome with acute nostalgia for my days at university.

我强烈地怀念大学时代生活。

Britain was in the grip of a nostalgia boom.

英国被突然盛行怀旧情结所控制。

Many people look back with nostalgia to feudal times.

许多人留恋不舍地顾封建时代。