...委员可以一律用commissary in charge of...表达
e.g.,
commissary in charge of studies 学习委员
commissary in charge of entertainment 文娱委员
commissary in charge of sports 体育委员
commissary in charge of publicity 宣传委员
...委员可以一律用commissary in charge of...表达
e.g.,
commissary in charge of studies 学习委员
commissary in charge of entertainment 文娱委员
commissary in charge of sports 体育委员
commissary in charge of publicity 宣传委员