at one blow

at one blow

Done or accomplished at once and with a single, decisive move. The new law reduced crime, poverty, and famine all at one blow.
See also: blow, one
References in classic literature ?
They tore up trees in their sore need, and defended themselves with them, but all that is to no purpose when a man like myself comes, who can kill seven at one blow.
It was necessary to let the French reach Shamshevo quietly without alarming them and then, after joining Dolokhov who was to come that evening to a consultation at a watchman's hut in the forest less than a mile from Shamshevo, to surprise the French at dawn, falling like an avalanche on their heads from two sides, and rout and capture them all at one blow.
Now therefore the artful Irregular whom I described above as the real author of this diabolical Bill, determined at one blow to lower the status of the Hierarchy by forcing them to submit to the pollution of Colour, and at the same time to destroy their domestic opportunities of training in the Art of Sight Recognition, so as to enfeeble their intellects by depriving them of their pure and colourless homes.
Those may be called properly used, if of evil it is possible to speak well, that are applied at one blow and are necessary to one's security, and that are not persisted in afterwards unless they can be turned to the advantage of the subjects.
Molly, having endeavoured in vain to make a handsome retreat, faced about; and laying hold of ragged Bess, who advanced in the front of the enemy, she at one blow felled her to the ground.