I have worked as chairman of the student union since i came to the university 自从我来到大学就一直是学生会主席。
He is very responsible , and was thus elected chairman of the students ' union 他有责任心，被同学选为学生会主席了。
She became president of the student union . she is becoming more and more able 她成了学生会主席，越来越能干，也开朗了不少。
Student union ， and i would like to express to my warmest congratulations 听说你当选学生会主席，我非常高兴并向你表示最热烈的祝贺。
My position as president of the student council has helped me develop my leadership and communication skills 我任学生会主席,培养了自己的领导能力,提高了自己的交流水平
My position as president of the student union has helped me develop my leadership and communication skills 我担任过学生会主席，培养了自己的领导能力，提高了自己的交流水平。
It was a great pleasure to learn that you ' ve been elected president of the student union ， and i would like to express to my warmest congratulations 听说你当选学生会主席，我非常高兴并向你表示最热烈的祝贺。
Thank you , director wu . please welcome students ' representative , student body president of the foreign language , guo li qiang , to an opening speech 感谢吴主任，接下来有请学生会代表外语系学生会主席郭立乾同学致开幕词。
Sirius says harry ' s dad , james , was never a prefect - but in an earlier book , hagrid told harry his father was head boy 斯内普说，哈利的父亲詹姆，从来没有做过级长? ?但是在前面的一部书里，海格告诉哈利，他父亲是男学生会主席。
