She's the director of policy studies for the Center for Immigration Studies.

她是移民研究中心的政策研究主任。

Yu was in charge of power industry policy studies and publicity when the State Electricity Regulatory Commission was merged into the NEA in 2013.

就在国家电力监管委员会于2013年与国家能源局合并之时，俞负责电力监管政策研究和新闻宣传工作。