- 夕阳西下 xīyángxīxià the setting sunthe sun sets in the west; the evening sun is going down
- 夕阳产业 xīyángchǎnyè sunset industryan industry that is declining or no longer has significant growth prospects
- 夕阳工业 xīyánggōngyè sunset industrya declining traditional industry that has lost its competitive edge and no longer attracts investment