at a blow

Christy's eyes widened and her head came up as though at a blow.

He was off on the skimmer at a high blow before she could stop him.

She gave the matter a more than passing thought, for it was sad to find a whole family thus wiped out at a blow.

"to hold out against a man who kills seven at a blow."

Everything in such excellent train, and all shattered at a blow!

He never needed to strain for effect; his genius struck out at a single blow the thought, the feeling and the word.

They seemed to be able to make steel that shattered at a blow.

Then his head was struck off at a blow.

"We are not made," they said, "to hold out against a man who kills seven at a blow."

The killing of all these commanders at a single blow.