捂着伤口笑说不痛
[wŭ zhe shāng kŏu xiào shuō bù tòng]
This translates to covering up emotional wounds while claiming that it does not hurt, signifying a character who is strong on the outside despite internal struggles. It implies resilience but also hints at the loneliness or unwillingness to show vulnerability. This is common in expressing the silent endurance of hardship.