n. longing for something past
n. 乡愁, 向往过去, 怀旧之情
[医] 怀乡病
1. I often feel nostalgia when I listen to old songs from my childhood.
每当我听到童年时的老歌时，我常常感到怀旧。
2. The old photographs brought back a wave of nostalgia.
那些旧照片带回了一阵怀旧之情。
3. Visiting my hometown filled me with nostalgia for my past memories.
访问我的家乡让我充满了对过去回忆的怀旧感。