旧光影里面的柠檬与少年
[jiù guāng yĭng lĭ miàn de níng méng yŭ shăo nián]
Translating as 'The Lemons and Youth under Old Light', it evokes nostalgic imagery of simpler times, perhaps referring back to teenage years, when life seemed full of fresh, sweet-sour moments like tasting a lemon.