眼睛里的一丝倔强嘴角边的一抹牵强
[yăn jīng lĭ de yī sī jué qiáng zuĭ jiăo biān de yī mŏ qiān qiáng]
'A hint of stubbornness in the eyes and a forced smile at the corner of the mouth.' This suggests a person who is putting on a brave front despite inner struggles or challenges they are facing.