umpire

n.裁判员v.(为…)做裁判员，当裁判 复数：umpires现在分词：umpiring过去分词：umpired过去式：umpired第三人称单数：umpires 牛津词典 noun 裁判员a person whose job is to watch a game and make sure that rules are not broken verb （为…）做裁判员，当裁判to act as...