豁然贯通

Explanation: Suddenly: accessible way; through: before and after the run through proficient. Refers to what a good grasp of a certain reason. 　　Usage: Partial official; as the predicate attribute; that knowledge, common sense, etc. 　　Source: Song Xi "University Chapters": "As long as force, and when suddenly through Yan." 　　Examples: Notes on the text to look again, read them ten times, suddenly ~, went so far as to realize a truth. ★ Qing Li Baojia "Bureaucrats" fifty-fourth back 　　Riddle: Dawu Thesaurus:  achieve mastery through a comprehensive study of the subject, draw inferences about other cases from one instance, suddenly see the light, tumble, be suddenly enlightened, Small clues tell, Gammer Nengjie, Corner of the three anti-, To know the micro-, sudden show of wit, understanding, etc （, That accounts for the milk in the cocoa -nut[coconut] Antonym Group:  Xi Yan Review, Learning rather than the police, Dream such as drunk, be imbeded in, s Dream Day, Trance, Gutengroufei, Hunqianmengying