习惯不曾习惯的习惯执着不曾执着的执着
[xí guàn bù céng xí guàn de xí guàn zhí zhe bù céng zhí zhe de zhí zhe]
It describes adapting to an unusual habit and holding on tenaciously without having previously been attached or committed to anything. This conveys a sense of going beyond personal limits for someone or something, showing resilience and unwavering commitment even in discomfort.