怀念曾经的所有想念曾经的一切
[huái niàn céng jīng de suŏ yŏu xiăng niàn céng jīng de yī qiè]
'Nostalgia for all those things and every aspect of the past' conveys a deep sense of yearning and reminiscence for days gone by, indicating an attachment to memories and times that were cherished.