姑凉少年读不懂你的忧伤
[gū liáng shăo nián dú bù dŏng nĭ de yōu shāng]
'Young Lady, Young Man cannot understand your sorrows' refers to young people unable to empathize with other’s deep-seated pain or sorrow due to less experience and maturity. It can indicate loneliness and incomprehension when people struggle with sharing their feelings and being understood.