The president says the change is not a change in policy.

VOA: special.2010.06.26

I don't think we have done a great job of being on the forefront of, you know, climate change policy,

我认为我们现在在制定环境政策的示范工作做得不够好，

喜欢环境法课程 - SpeakingMax英语口语达人

The visit has been welcomed as a positive change in Washington's Burma policy, from one of isolation to engagement.

VOA: standard.2009.11.02

A new report by the PEW Center on Global Climate Change, an independent policy research group, echoes the president's view.

VOA: standard.2010.06.14

At the festive ceremony, the president acknowledged that this legislation will mark a fundamental change in U.S.domestic policy.

VOA: standard.2010.03.23

So,would a coalition government - with the dovish Liberal Democrats as kingmakers - change British policy on Iran?

VOA: standard.2010.04.30

O'Hanlon says even though the aim of modern day terrorists is to force a change in policy, so far,the tactics do not work.

VOA: standard.2010.03.30