坚强太久心已千疮百孔
[jiān qiáng tài jiŭ xīn yĭ qiān chuāng băi kŏng]
'Too Long Stood Strong, My Heart Is Riddled with Holes.' This indicates deep, accumulated inner suffering masked behind outward strength. Over time, this person might have faced numerous challenges leading to internal pain even as they maintain an image of toughness externally.