n.

the backward escape of gases and unburned gunpowder after a gun is fired

同義詞：blowback

a loud noise made by the explosion of fuel in the manifold or exhaust of an internal combustion engine

a fire that is set intentionally in order to slow an approaching forest fire or grassfire by clearing a burned area in its path

a miscalculation that recoils on its maker

同義詞：boomerang

Objectives That Backfired
Objectives that backfired.(Commentary)
U.S. strategy on Iran may have backfired
Gun for Hire Advertisement that Backfired and Hit the Publisher in the Pocketbook
You must be over 18 to read this - how a technological intervention backfired
Football - Premier NEWS: McKenna: Airbus Gamble Backfired Horribly on Saints; DAVID TRIGGS ON THE WELSH PREMIER
Prison Riot 'All Straw's Fault' Cost-Cutting Moves to Halt Overcrowding Backfired, Say Unions
South Korea once trained a secret unit to assassinate the North Korean president — but it backfired completely
Filters Fitted to Black Cabs Actually Make the Air Dirtier ; Mayor's Bid to Cut Toxic Emissions Has Backfired
Sullen Silences, a Suspiciously Enhanced Cleavage and the [Pounds Sterling]30,000 Rooney PR Stunt That Backfired