名词
中文翻译：怀旧
同义词：
['nostalgia', 'melancholy', 'sentimentality例句：1. She often has a mastalgia for her childhood days.（她经常怀念童年的日子。）']
例句：
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1. She often has a mastalgia for her childhood days.
她经常怀念童年的日子。
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2. The old house holds many memories, and it brings her a mastalgia.
那座老房子承载着许多回忆，这让她感到怀旧。
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3. He was deeply moved by the film, which made him feel a mastalgia for his youth.
这部电影深深触动了他，让他对年轻时的时光产生了怀旧之情。