化妆只为掩饰那一丝沧桑
[huà zhuāng zhĭ wéi yăn shì nèi yī sī cāng sāng]
Translating to 'Makeup Is Only To Hide That Trace of Weariness', this suggests a sad sentiment that the person puts effort into concealing their struggles, insecurities or hardships experienced over time through makeup, showing a vulnerable side under the surface.