豁然开朗

Explanation: Suddenly: the way light and spacious open; cheerful: local open, well lit and bright. Refers to the bright and spacious suddenly emerged in the realm of 　　Usage: Partial official; as predicate, object, attribute; metaphor suddenly realized the truth 　　Source: Jin Tao Qian's "Peach Blossom Spring": "the beginning of a very narrow, only learned person. Revival Shu Shibu, suddenly see the light." 　　Examples: Gem ~ smiles: "It is very. (Qing Cao Xueqin," Dream of Red Mansions "ninety-first back) 　　Riddle: Daigo; vista Thesaurus:  visibly, the eyes of the masses are fixed on sb. or sth., Taichetaiwu, the awakening or realization (of past wrongdoings, hopeless pursuits, mistakes, etc.), as if awakening from a dream, the masses are sharp-eyed, Kaiwudutian, Wakeful appearance With Wu, (as) clear [plain] as (the sun at) noonday, very obvious, Highly visible, zhangjiao, (It is) needless to say Antonym Group:  secret act, There I was difficult to separate, A mouth wordless, A mouth Nanbian, Bitter wordless, unable to give a convincingexplanation for self-defense, Peru without speaking, Tibetan monkeys Mountain, stick in one's throat, be hard to state what ails one in the mird, Stealthy