也许久
[yĕ xŭ jiŭ]
This short phrase, literally meaning 'Perhaps for a long time,' can express uncertainty or a contemplative mood about something that could have been happening or existed for quite some time. It can hint towards experiences such as longing, waiting, or deep contemplation, reflecting that the user might be thinking about past experiences, future hopes, or current feelings with a tinge of mystery and ambiguity.