必操胜券

Explanation: Cao: hold, hold; Certificates: Certificate; confidence in the victory: the victory of the grasp. There must be sure of victory 　　Usage: Verb-object type; as predicate, object, complement; describe certain of victory 　　Source: Qian Han, "Historical Records Tianjing Zhong family": "regular executive Zuoquan to _select_ Qin Han." 　　Examples: The competition, the Chinese team will Caosheng Quan. Thesaurus:  Takes up odds, Takes up certainty