Explanation: Master the use or control handy, there is no obstruction. Usage: Supplemental; as predicate, object; that have complete control Source: Qing Liu E, "Travels," the first round: "In case of calm when the situation like he was driving, also handy with a wonderful." Examples: Some of situation he was driving ~ the wonderful, unexpectedly met such a big storm today, so the hands and feet are gross. (Qing Liu E, "Travels")