成竹在胸

Explanation: Bamboo: bamboo box full. The whole picture before the bamboo bamboos in the chest. Analogy has been made up before the doctrine in the work. 　　Usage: The main predicate; as predicate; analogy has been made up before the doctrine in the work 　　Source: Su Song, "the text and to paint the bamboo Yuandang Yan Gu": "it is bamboo, we must first get the bamboo in the chest, as the author of cooked, is reflected in its Suoyu artist, Taiwan stay from it, then straight vibration. " 　　Examples: Teacher's question he answered leisurely, ~.