Hereisatranslationof"邀请函"intoEnglishalongwithabriefintroduction:"InvitationLetter"Aninvitationletterisaformalwrittenrequestinvitingsomeonetoattendanevent,meeting,orspecialoccasion.Ittypicallyincludesdetailssuchasthepurposeoftheevent,date,time,location,andanyspecificrequirementsfortheinvitee.Invitationlettersarecommonlyusedforbusinessconferences,weddings,academicceremonies,andotherimportantgatherings.TheyserveasofficialdocumentationoftheinvitationandoftenincludeRSVPinformationfortherecipienttoconfirmtheirattendance.