旧人等故人
[jiù rén dĕng gù rén]
'Old One Waiting for the Acquaintance' conveys a deep emotion. '旧人' usually means old people you know, implying former love; '等' indicates 'waiting'. The whole term expresses the sentiment of an individual who yearns to see an old acquaintance again, possibly filled with unresolved nostalgia and lingering affection.