Nostalgia is an affectionate feeling you have for the past, especially for a particularly happy time.
例句
He might be influenced by nostalgia for his happy youth...也许是对年轻时幸福时光的怀恋影响了他。He discerned in the novel an air of Sixties nostalgia.他在小说里感受到一种20世纪60年代的怀旧氛围。
英汉词典释义
n.
对往事的怀恋, 怀旧
Many people look back with nostalgia to feudal times.许多人留恋不舍地回顾封建时代。