咬破嘴唇也不准哭流下眼泪也不许输
[yăo pò zuĭ chún yĕ bù zhŭn kū liú xià yăn lèi yĕ bù xŭ shū]
This nickname conveys a strong determination to persevere in face of hardships. It translates to 'even if it means biting my lips till they bleed, no crying or giving up.' It symbolizes resilience and an unyielding spirit.