路街冷巷旧少年
[lù jiē lĕng xiàng jiù shăo nián]
It translates to 'Cold alleys and streets of the old youth,' depicting loneliness or nostalgia over youthful times gone by. It could reflect on how people change and mature, often leaving them somewhat melancholic about the past. The cold streets suggest a stark, sometimes harsh reality faced by grown-ups compared to carefree younger days.