茅塞顿开

Explanation: Maosai: Yu Rensi Road occlusion or ignorance; Dayton: immediately. The original seems to have grass clogging the heart, and now suddenly been opened. Describe the thought suddenly resuscitation immediately understand a reason. 　　Usage: The main predicate; as predicate, attributive, adverbial; with compliment 　　Source: Qin Meng Ke, "Mencius down": "trail through the mountains, the medium used, becomes a road; is not free, then Maosai carry on. The heart of this Maosai son now!" 　　Riddle: Understood why Thesaurus:  achieve mastery through a comprehensive study of the subject, draw inferences about other cases from one instance, suddenly see the light, tumble, Suddenly transfixion, 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