一日三秋 | Yī Rì Sān Qiū
一日 三秋 (Yī Rì Sān Qiū) means "A single day apart feels like many years (3 Autumns or seasons)" and is an idiom expressing longing for a loved one through hyperbole.
Usage Examples: "想念好友,难免有一日三秋之感." | "A day apart from a good friend feels like many years." "热恋中的情侶,总盼時刻相聚,短暂分离,当然有如一日三秋呀!" | "Couples always look forward to spending time together, even a brief separation feels like many years (3 seasons or Autumns)." "自从分別以后,我总觉得「一日三秋」,每天都盼望著你能早日回來相聚." | "Being apart from loved ones feels like many years. Every day you wish to meet them again.