凉城凉心菇凉百毒不侵
[liáng chéng liáng xīn gū liáng băi dú bù qīn]
It translates as 'cool city, cold-hearted girl who’s immune to all poisons'. This expresses that someone, likely a girl, has experienced heartache in her environment (metaphorized as a 'cool city'). She has become guarded, emotionally resilient, and unharmed or unaffected even when confronted with difficulties.