At this vital moment she did not know what her welcome would be.

General, I don't like leaving my company at this vital moment.

But at this vital moment in the history of space travel the time factor would become almost meaningless.

Not when she was likely to pounce at a vital moment.

The chance encounter was of vital moment to each man.

It was his turn to be out of earshot, at a vital moment.

Most important is the 'hands together' technique for those vital first moments of flight.

It is at a vital moment in their relationship that he has his terrible traffic accident.

And how was it they had taken effect at the vital moment?

However, he backed out at the vital moment, and Sheila decided to see it through.