Mr.Obama spoke at the White House Wednesday, shortly after aides made public his decision to fight the release in court.

VOA: standard.2009.05.13

What it means is if you'd release a rock at that location one second before with a certain speed that we can calculate, it would've ended up here with precisely the position and velocity it had at the beginning of our experiment.

它的意义在于,若在该处以特定速度抛出一个物体,这个速度可通过计算得到,一秒之后,物体会运动至我们设定的起点,并且速度为我们设定的初速度

耶鲁公开课 - 基础物理课程节选

(RECORDING) Speaking to reporters shortly after his release, the journalist said he now fears for his life at the hands of U.S.intelligence agents.

VOA: standard.2009.09.15

Some national security officials, including CIA director Leon Panetta, are reported to have opposed their release or to have at least more information censored out of them.

VOA: standard.2009.04.17

But she loves American standards, from show tunes and loves songs, as she told people at the release party for her new CD, called I'm Glad There is You.

VOA: standard.2009.11.03

The report's release comes at a sensitive time. The Obama administration is debating whether to deepen its commitment to the war in Afghanistan, which is becoming increasingly unpopular in the United States.

VOA: standard.2009.09.11

"A sense that a step is made to release prisoners, and the government is trying to build some bridges in certain areas, but at the same time, the revolutionary side is given its moment in which Fidel Castro is able to excoriate the United States and to continue to lay out the revolutionary credentials, or Cuba's role as a leader of the Third World."

VOA: standard.2010.07.13