花甲之年依然有你迟暮之年依然伴你
[huā jiă zhī nián yī rán yŏu nĭ chí mù zhī nián yī rán bàn nĭ]
Translating to 'even at the age of 60 (referring to old age), I still have you; even when evening comes (symbolizing advanced years), you are still with me'. It emphasizes the longevity and steadfastness of a relationship through time and change.