丢三落四

Explanation: Careless or sloppy work described by bad trade-off memory 　　Usage: Joint type; as object; containing derogatory 　　Source: Qing Cao Xueqin's "Dream of Red Mansions" 67 back: "As the saying goes: the 'ram Chelsea before flying', the province temporarily forgetful is not complete, it is a joke." 　　Results: Twelve thousand five hundred sixty-seven; hunting forgot shotgun; said forget the dipper gourd 　　Postscript: Twelve thousand five hundred sixty-seven; hunting forgot shotgun; said forget the dipper gourd 　　Riddle: One, two, five Thesaurus:  Three bad mistake four, Losing things