曾經繁華渲染離別的淒美
[céng jīng fán huá xuàn răn lí bié de qī mĕi]
It means 'Past Flourishing Adorns The Desolate Beauty Of Farewell', which portrays nostalgia about a place once filled with prosperity or joy but now feels sad due to separation or decline. It expresses an artistic appreciation of the bittersweet beauty left in such contrasts.