二十个学生代表作为这次竞赛的裁判的翻译：20 student representative as the contest judges 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Twenty students in this competition as a judge on behalf of

20 student representative as the contest judges

20 student representatives take this competition referee

20 representatives of the students as this contest the referee

20 student representative as the contest judges