强颜欢笑白色记忆的存在
[qiáng yán huān xiào bái sè jì yì de cún zài]
'A Forced Smile over White Memories' implies forcing a joyful face despite sad reminiscences, particularly those which have been washed away over time (whitened). 'White memory' refers here to the fading of color in old photos due to time passing or emotional distancing.