不能怒不能诉不能哭不能输
[bù néng nù bù néng sù bù néng kū bù néng shū]
It means 'I cannot get angry, file complaints, cry or lose'. Expressing an indomitable resolve, this phrase reveals a state of having no way out yet refusing to succumb, showing resilience, courage in enduring hardships silently, not expressing dissatisfaction, seeking solutions independently.