宣传委员，还有信息部部长用英文怎么说？？？

Propaganda Commissioner
Secretary of Information Department(学校级别的部长）
(如果是国家级部长则用：Minister of Information)

commissary in charge of publicity
leader of the information department

commissary in charge of publicity 宣传委员
the minister of Information Department 信息部部长

commissary in charge of publicity

minister of the IT department 也可以说成information department

propaganda delegate
minister of information ministry

宣传委员:Propaganda committee member
信息部部长:Information department minister