孤城旧人空城空人
[gū chéng jiù rén kōng chéng kōng rén]
Translating as 'the old people in lonely city; empty city, empty people,' this suggests feeling isolated and alone even amidst a crowd. This might reflect on how a city, filled with memories of past acquaintances or relationships, now feels void or empty, evoking loneliness and solitude.