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to backfire
01
适得其反, 产生相反的效果
to have a result contrary to what one desired or intended
Intransitive
Example
His attempt to prank his friend backfired when she turned the tables on him.
他试图捉弄朋友的企图适得其反，当她反将一军时。
The company 's decision to cut costs unexpectedly backfired, leading to a decline in product quality.
公司削减成本的决定意外地适得其反，导致产品质量下降。
02
反向燃烧, 点燃受控火
to intentionally start a small fire in order to control or prevent the spread of a larger fire
Intransitive
Example
The firefighters decided to backfire to contain the wildfire before it spread further.
消防员决定反向点火以控制野火，防止其进一步蔓延。
In order to control the blaze, they backfired along the ridge to create a firebreak.
为了控制火势，他们沿着山脊进行了回烧以创建防火带。
03
回火, 发生故障
(of a vehicle or its engine) to experience an explosion in the engine or exhaust system due to improper timing, causing a loud noise or malfunction
Intransitive
Example
The old car backfired when I tried to start it this morning.
今天早上我试图启动那辆旧车时，它回火了。
If the engine 's timing is off, it can easily backfire.
如果发动机的定时不准，很容易回火。
Backfire
01
适得其反, 事与愿违
a miscalculation that recoils on its maker
02
回火, 发动机内爆炸
a loud, sudden explosion of unburned fuel in the engine or exhaust system
Example
The old car occasionally experienced a backfire when starting up.
那辆旧车在启动时偶尔会经历回火。
She heard a backfire from the exhaust after accelerating.
加速后，她听到排气管传来一声回火。
03
回火, 气体后逸
the backward escape of gases and unburned gunpowder after a gun is fired
04
逆火, 战术火
a fire that is set intentionally in order to slow an approaching forest fire or grassfire by clearing a burned area in its path
