唇间那一抹血线吻后那一抹思念
[chún jiān nèi yī mŏ xuè xiàn wĕn hòu nèi yī mŏ sī niàn]
A hint of blood after a kiss leads to an unforgettable yearning. It poignantly portrays the lingering emotions post-kiss, which can either symbolize bittersweet love or passionate intimacy with longing.