研精覃思

Explanation: Research study; fine dense; Qin depth; thinking thinking. Well-researched, in-depth thinking. 　　Usage: Joint type; as predicate; refers to the careful research, deep thinking 　　Source: Tang Kong Yingda, "chancery order," Cheng Chao as fifty-nine for transmission, then research then fine Si Qin, Bo examination by the membership, made by mining pick group to establish training pass. " 　　Examples: If the ~, was devoted to the study, the Sri Lankan solid Wei Xia. ★ Zhang Binglin "Journal of origin is" Thesaurus:  Research and security and comfort, refined