搜根剔齿

Explanation: Mean deliberately look for flaws, looking for trouble. 　　Usage: Joint type; as the predicate attribute; that get to the bottom 　　Source: Ming Shinai "Water Margin" 41 back: "Zhihen Huang Wenbing tick tooth root that fellow search and after several instigate poison, to kill us." Thesaurus:  run to ground, dig Make a thorough investigation of basio-, an inquiring (turn of) mind, plate Make a thorough investigation of basio-, Digging to find the source of the, Pursuit ray tracing