初恋是根刺拔不掉咽不下
[chū liàn shì gēn cì bá bù diào yān bù xià]
It translates to “First love is like a thorn that cannot be pulled out or swallowed.” It expresses the bittersweet and unforgettable emotions associated with one's first romantic experience. First love often has profound significance and leaves deep traces.