独穿一个人的情侣装独唱一个人的小情歌
[dú chuān yī gè rén de qíng lǚ zhuāng dú chàng yī gè rén de xiăo qíng gē]
This means 'Wearing a couple's outfit alone and singing a love song solo.' This suggests loneliness or heartbreak while remembering a previous relationship or a lost loved one.