烟火搁浅了旧时光
[yān huŏ gē qiăn le jiù shí guāng]
'Fireworks stranded the old times' or better explained: it signifies fleeting moments like fireworks and how they freeze frames or memories that once happened. Old memories or times have paused or remained frozen, perhaps indicating nostalgia or recalling olden days triggered by fleeting beauty like fireworks lighting up the sky.