时间冲淡了回忆回忆刺痛了笑容
[shí jiān chōng dàn le huí yì huí yì cì tòng le xiào róng]
Time has diluted memories; recalling memories can hurt present smiles. Expresses sadness about past experiences that cause pain when remembered today. It symbolizes nostalgia tinged with sorrow as well as growth over time despite enduring scars within heart.