苦心经营

Explanation: Exhaustion of mind to plan arrangements. 　　Usage: Partial official; as the predicate attribute; for military, commercial, etc. 　　Source: Qing Liang "Future of New China," the fourth back: "But the autocracy is not removed, despite your relative Nende Jun painstaking efforts, their resources are not well-developed fault." 　　Results: Coptis holding business 　　Postscript: Coptis holding business 　　Riddle: Ten had the Junzhang Thesaurus:  go to great pains, deliberately planning, work hard and carefully to keep one's business going, painstaking accomplishment, rack one's brains, Deep thinking, make extraordinarily painstaking efforts, 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