家喻户晓

Explanation: Yu: to understand; Xiao: Yes. Every family knows that. Described as well known. 　　Usage: Joint type; as the predicate attribute, object; described widespread 　　Source: Song F key "to pay such impunity Zheng Xi": "And suddenly there is impunity of purpose, not at home encyclical household, who must have light in the next meeting." 　　Examples: Its not OK for the spread of the Qin and Han Dynasties is far better to be ~ the "Water Margin", "Journey to the West," the text also. (Hu, "driven to revolt") 　　Riddle: Everyone knows Thesaurus:  Went house to house by family, from time (door/side) to time (door/side), House to house,, From house to house door, Door to door, Door home that, be known to all, strike root in the hearts of the people