怀旧

例句：

1. 1. She often feels a strong nostalgia for her childhood days.
   她经常对童年的日子感到强烈的怀旧。
2. 2. The old house still holds many memories of their happy times together.
   那座老房子仍然保留着他们快乐时光的记忆。
3. 3.He has a deep nostalgia for his hometown and misses the old ways of life.
   他对家乡有着深深的怀旧之情，怀念旧日的生活方式。