时间让痛苦不平都沉淀怀念让昨日美好再浮现
[shí jiān ràng tòng kŭ bù píng dōu chén diàn huái niàn ràng zuó rì mĕi hăo zài fú xiàn]
Time makes all sorrows sink to the bottom, but reminiscence brings yesterday's beauty back up. This means that as time goes by pain eventually settles but fond memories rise up again.