成熟只是让我学会了背叛
[chéng shú zhĭ shì ràng wŏ xué huì le bèi pàn]
Means 'Maturity only taught me how to betray.' Suggesting personal growth or maturity has ironically resulted in acquiring skills in being disloyal or learning how to deceive, revealing a sense of remorse or cynicism about maturity experiences.