被风吹走的誓言
[bèi fēng chuī zŏu de shì yán]
'Bèi fēng chuī zǒu de shēnyuàn' can be translated as 'The vow blown away by the wind'. It metaphorically expresses forgotten promises or pledges, possibly implying impermanence, fleetingness or betrayal in commitments especially romantic ones that fade just as quickly as the wind carries them away.