时间冲淡了誓言
[shí jiān chōng dàn le shì yán]
'时间冲淡了誓言' means 'time has faded the vows'—this highlights how the ravages of time have softened once solemn promises, suggesting that changes brought about by the passing years have diluted past commitments or covenants, revealing the vulnerability of human emotions against the unstoppable flow of time.