For most men and women, fitting in an hour of moderately intense exercise in an already hectic day is difficult, if not impossible.

VOA: standard.2010.03.30

Margaret Smith, a leader in Washington society at that time, wrote a letter describing the scene: Ladies fainted, men were seen with bloody noses and such a scene of confusion took place as is impossible to describe - those who got in could not get out by the door again, but had to scramble out of windows.

VOA: special.2009.01.19

Not exactly. When we taste human blood, a sort of frenzy begins, and it's almost impossible to stop.

VOA: standard.other

(SAYING) Mely says that while the push for immigration reform is difficult, it should not be impossible.

VOA: standard.2010.03.21