余温心口余下的温度余地心脏余下的地方
[yú wēn xīn kŏu yú xià de wēn dù yú dì xīn zàng yú xià de dì fāng]
This can be interpreted as 'the lingering warmth in my heart left over from someone or something'. It conveys nostalgia and longing for past emotions or relationships.