你不会了解我的固执你不会了解我的倔强
[nĭ bù huì le jiĕ wŏ de gù zhí nĭ bù huì le jiĕ wŏ de jué qiáng]
'You Won't Understand My Stubbornness, You Won't Understand My Persistence', indicating a level of firm belief or commitment that only the self knows, suggesting that others won’t really understand such determination unless experienced personally.