深蓝大衣勿忘她心淡绿长裙深记我心
[shēn lán dà yī wù wàng tā xīn dàn lǜ zhăng qún shēn jì wŏ xīn]
'Do not forget her heart in the deep blue coat, the light green long dress lingers deeply in my mind' conveys the memory of a beloved person, probably an ex or someone special. The contrasting imagery highlights that while this person has left an impression, the narrator urges themselves or others not to linger on lost love.