amateurs业余运动员amateurn.外行；业余爱好者adj.业余（爱好者）的amateur and professional actors业余和专业演员Amateur actors often overact.业余演员往往表演过火。Amateur Radio Emergency Service业余无线电应急服务处Amateur Athletic Union of Canada加拿大业余体育联合会amateur literary and art workers业余文艺工作者amateurish table tennis training业余乒乓球训练Amateur Radio On-Line Home Page碱减量率Amateur Fencers League of America美国业余击剑者联合会amateur and professional actors.业余和专业演员amateur short - distance athlete业余运动员