amateurn.外行;业余爱好者adj.业余(爱好者)的
amateur training业余训练
amateur football业余足球赛
amateur operator业余操作员
amateur art club课余演出小组
amateur offender业余犯罪人
amateur referees业余裁判
amateur at music业余音乐家
amateur sculptor业余雕刻爱好者
amateur athletes业余运动员
amateur receiver业余无线电接收机
"a very amateurish job"
"inexpert but conscientious efforts"
"an unskilled painting"