倘若不坚强没人替你勇敢
[tăng ruò bù jiān qiáng méi rén tì nĭ yŏng găn]
This means 'If I don't remain strong, no one else will be brave for me.' It conveys a sense of self-reliance and resilience, suggesting that the individual must toughen up because there's no one else they can depend on.