"When you look at the content of this legislative career, spanning a whole breadth of public policy,health policy, social policy,foreign policy.

VOA: standard.2009.08.26

There's a number of people who are focused on social and urban policy,

有好多人专注于社会和城市政策，

肯尼迪学校 - SpeakingMax英语口语达人

The Defense Department has been writing a policy for all of the military on the use of social networking sites.

VOA: special.2009.09.14