一、分开表述为：
1.我是学院团委组织部副部长 I am the Vice Minister of the Communist Youth League organizations.
2.我是院学生会和团委的一员I am a member of Student Union and Youth League.
二、合起来表达：
第一种表述：I am a University Vice-Minister of Youth League organizations, I was worked in Student Union and the Communist Youth League。
或者：I am college, vice minister of youth organization I am of student and a member of the communist youth league。
三、单词分析。
学生会 student association ；学院团委组织部副部长 College vice minister of youth organization；团委Youth corps committee.