我没变是因为学会伪装
[wŏ méi biàn shì yīn wéi xué huì wĕi zhuāng]
In the west, we might render "Unchanged Because I've Learnt How To Disguise" as, 'remaining unchanged while mastering the art of deception or concealment.' It could express an idea of growing up in a tough society, keeping your original self but becoming good at dealing with people or matters.