"President Obama embodies the new spirit of dialogue and engagement on the world's biggest problems: climate change, nuclear disarmament and a wide range of peace and security challenges,".

VOA: standard.2009.10.09

Now let's change the pressure and temperature and sweep through a whole range of pressures and temperatures and measure the volume in every one of them.

然后改变气压和温度,并且让气压和温度,取便所有可能的数值,测量相应的体积。

麻省理工公开课 - 热力学与动力学课程节选

Some centrist Democrats, such as Senator Claire McCaskill of Missouri, also criticized the way the president rolled out the new defense plan, and some questioned the intelligence behind the change in strategy to focus moreon short and mid-range missiles from Iran.

VOA: standard.2009.09.24