Speaking at the International Institute for Strategic Studies in London, Mr.Brown said Britain cannot walk away.

VOA: standard.2009.09.04

And, believe it or not, I have students walk in and first thing a hand goes up and says do you have a pen? I cannot believe it.

不管信不信，我有些学生走进来，第一件事就举起手问,你有没有笔，难以置信。

麻省理工公开课 - 固态化学导论课程节选

It finds nothing. The pig starts to walk away, but it cannot move its feet.

VOA: special.2010.04.07

"If they can get the work done and walk into your casting office and you cannot tell by looking at them that they've had anything done,that's O.K."

VOA: standard.2010.07.22