I am studying in Department of Business Administration.

我在工商管理系学习。

youdao

Management is a basic course of department of business administration.

管理学基础是工商管理本科专业的基础课程之一。

youdao

Dear Mr. Byron, I am a senior from the Department of Business Administration.

尊敬的拜伦先生：我是工商管理系大四的学生。

youdao

"More than 28, 000 flights take off each day in the United States, so if you look at the statistics, they're pretty small in relation to the big picture, " said Kees Rietsema, department chair of business administration at Embry-Riddle Aeronautical University.

CNN: Air rage: Passengers 'quicker to snap'

According to the report, more than half of the 90 programs to be cut or eliminated are within the U.S. Department of Agriculture (25 programs), the Small Business Administration (14) and the Department of Labor (9).

FORBES: Funding For The Little Guy

That is more than the budgets of the Department of Education and the Small Business Administration combined.

WHITEHOUSE: Signing the Improper Payments Elimination and Recovery Act | The White House