夕遇一人白首泽择一城终老
[xī yù yī rén bái shŏu zé zé yī chéng zhōng lăo]
At Dusk, Meeting Someone, Grey-haired, Choosing A City Together To Spend The Rest Of Life Together. It indicates longing for an idealized romantic relationship where two people can choose a city together to grow old side by side.