John Nichols,a comparative media expert and Professor of Communications and International Affairs at Penn State University reiterated his longstanding criticisms of TV Marti, saying it has failed to build an audience.

VOA: standard.2009.06.18

But if you're trying to use that virus as a gene delivery vector and your body gets rid of it then the therapy has failed, it's ended.

但如果你想把腺病毒作为基因治疗载体,而你的身体清除这种病毒,治疗就失败了,前功尽弃了

耶鲁公开课 - 生物医学工程探索课程节选

The Queensland government has defended its response to the disaster thus far amid accusations that it failed to act quickly enough.

VOA: standard.2009.03.13

He says America's land-for-peace formula has failed and it is time for a new approach.

VOA: standard.2009.04.26

Another sticking point is pressure by the EU for Turkey to open its ports and airports to Greek Cypriot traffic, which it has so far failed to do.

VOA: standard.2010.04.15

But the secretary also said senior officials are aware that past efforts have failed, and he said it is not clear whether the view in Tehran has changed.

VOA: standard.2009.05.05

In blunt terms,the Foreign Affairs Select Committee report says Britain's military mission in Afghanistan has failed to deliver what it promised, because troops are being asked to do too many different tasks.

VOA: standard.2009.08.02

It has similarly failed to respond to an invitation by European Union Foreign Policy chief Javier Solana for a new round of talks on its nuclear program with the five permanent U.N.Security Council member countries and Germany,the P5+1.

VOA: standard.2009.06.24