三夏纪年
[sān xià jì nián]
Translates to 'Summer Years Counted'. '三' stands for three, '夏' is summer, and '纪年' usually means marking or recording years. This could be referring to memories made during summertimes, possibly the first three summers of one’s memory, highlighting important years in one’s life marked by summer experiences. This evokes feelings of reminiscence about warm days filled with youthful vigor.