han·dler /ˈhæn(d)lɚ/
  處理的人,教練,經理人
  handler
  處置程式
  handler
  處置器 柄
  handler
       n 1: one who trains or exhibits animals [syn: animal trainer]
       2: an agent who handles something or someone; "the senator's
          campaign handlers"
       3: (sports) someone in charge of training an athlete or a team
          [syn: coach, manager]