苦心孤诣

Explanation: Refers to the painstaking research, to reach the point where other people. Also refers to the search for solutions to problems and pains. 　　Usage: Joint type; as object, attribute, adverbial; with compliment 　　Source: Qing Detailed Explanation "Collected Works fast style of the early recovery under the": "This year, do not place the artistic conception of those words alone operation, do not bind to those who made painstaking Jiajia words alone, and to this effect as if the ancient style by Imitating words. " 　　Examples: ~ To make a motion with the President, and later was sent packing, ran to Tianjin. (Guo "revolution to create years of the Spring and Autumn") Thesaurus:  go to great pains, deliberately planning, work hard and carefully to keep one's business going, elaboration, painstaking accomplishment, rack one's brains, Deep thinking, lucubrate, Bruising, cudgel one's `brains think very hard, Of peaceful contemplation search for, make painstaking efforts, think twice about doing sth., Puzzle, to manage with great pain Antonym Group:  Lver Caogu, regard … as a trifling matter