妇孺皆知

Explanation: Ru children. Women, children all know. That well known. 　　Usage: The main predicate; as the predicate attribute, complement; describe simple things 　　Source: "Fallen Western Xinghuoliaoyuan" But bring him (Long) the name of the people of Hunan, Hubei, almost of the women and children. " 　　Examples: But bring him (Long) the name of the people of Hunan, Hubei, this is almost ~. ("Xinghuoliaoyuan renewed Western") Thesaurus:  make known to every household, Jiaxianhusong, truism, Every barber knows that., well known, Vacant Nobody knows Antonym Group:  Unconsciously, Did not know I do not know, Person without our noticing, spirit guiltless, dottiness, ghost cannot help