对不起打扰了你这么久没关系请你继续打扰吧
[duì bù qĭ dă răo le nĭ zhè me jiŭ méi guān xì qĭng nĭ jì xù dă răo ba]
Conveying an apology for having troubled someone for too long, but also a hopeful invitation to continue interacting. It strikes a balance between acknowledging imposition and seeking continued contact.