This week we feature a website where you can learn your physics from some of the people on the forefront of some of the most fundamental science out there.

VOA: standard.2010.03.05

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