我用三生烟火换你一笑倾城
[wŏ yòng sān shēng yān huŏ huàn nĭ yī xiào qīng chéng]
The meaning is profound, symbolizing giving up everything one cherishes (even three lifetimes of happiness) for a fleeting smile that captivates an entire city. "Trade All I Own For One Of Your Dazzling Smiles"