Scientists say extensive observations from earth-based telescopes are needed to confirm the existence of the planets.

VOA: special.2011.02.09

So hopefully if some of you have your calculators with you, you can confirm the answer that I got, which is that the energy is 7.82 times 10 to the -19 joules.

所以如果你们带了计算器,希望你们也能确认一下，我们算出的答案，能量等于,7，82乘以10的-19次方焦耳。

麻省理工公开课 - 化学原理课程节选

.. Can Judd confirm this? -Anybody... Voting anybody any time is a roll of a dice.

你赞同吗，肯·贾德？，-任何人。,任何时候给任何人投票都是在赌运气。

斯坦福公开课 - 经济学课程节选

It continues to confirm that some U.S.bombers, all the B-1 bombers, no longer have a nuclear weapons role,".

VOA: standard.2009.04.08