backfire

适得其反、事与愿违、反效果

Their plan to cut costs backfired and profits fell sharply.

他们削减成本的计划适得其反，利润大幅下滑。

回火、逆火指引擎

The old truck backfired loudly as it pulled away.

那辆老卡车开走时发出很大的回火声。

回火、逆火

A sudden backfire from the engine startled everyone on the street.

引擎突然的回火声吓到了街上所有人。

迎面火、逆烧火消防

Firefighters lit a backfire to stop the flames from spreading.

消防员点起迎面火，阻止火势蔓延。