如果时光再来一次如果岁月重来一遍
[rú guŏ shí guāng zài lái yī cì rú guŏ suì yuè zhòng lái yī biàn]
'If time came once again if years could start anew' conveys the user's contemplation of redoing or reimagining past experiences, expressing regret and a desire for changes in the flow of life.