"编讲悲惨的往事" can be translated into English as "fabricate and recount tragic past events" or "concoct and narrate sorrowful past stories".
Here, "fabricate" or "concoct" implies creating or inventing something, often with a negative connotation of not being entirely truthful, while "recount" or "narrate" means to tell a story or describe events in order. The overall phrase conveys the idea of creating and then telling a sad or tragic story from the past.