noun🔗Share顺风点火，反烧。 A small, controlled fire set in the path of a larger uncontrolled fire, in order to limit the spread of the large fire by removing its fuel."The firefighters used backfires to protect the town from the approaching wildfire. "消防员们使用顺风点火，反烧的策略来保护城镇免受逼近的野火侵害。environmentdisasterfuelactionChat with AIVocabulary GamePractice Reading
noun🔗Share回火，逆火 An explosion produced either by a running internal combustion engine that occurs in the air intake or exhaust system rather than inside the combustion chamber or unburned fuel or hydrocarbons ignited somewhere in the exhaust system."The old car's backfires were so loud they startled everyone on the street. "那辆老爷车的回火声太大了，把街上所有人都吓了一跳。technicalvehiclemachinesoundenergyfuelindustryChat with AIVocabulary GamePractice Reading
noun🔗Share逆火，回火 A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in the wrong direction."The old car's backfires were so loud they startled everyone on the street. "那辆旧车的逆火声太大了，把街上的所有人都吓了一跳。technicalmachineenergyvehicleChat with AIVocabulary GamePractice Reading
noun🔗Share事与愿违，适得其反 An explosion in the exhaust passages of an internal combustion engine."The mechanic diagnosed the car's loud popping noise as backfires in the exhaust system. "那个修理工诊断出汽车排气系统发出的巨大爆裂声是回火现象。technicalmachinevehiclesoundenergyChat with AIVocabulary GamePractice Reading
verb🔗Share事与愿违，适得其反. (of a gun, cannon, Bunsen burner, etc.) To fire in the opposite direction, for example due to an obstruction in the barrel."The student's poorly aimed rocket backfired, sending the flaming fuel directly into his own face. "这个学生制作的火箭瞄准得很差，结果发射时发生逆火，把燃烧的燃料直接喷到了他自己的脸上.technicalmachineweaponChat with AIVocabulary GamePractice Reading
verb🔗Share事与愿违，适得其反 (of an engine) To experience a premature ignition of fuel or an ignition of exhaust gases, making a popping sound."The old car often backfires loudly when I try to start it in the cold. "这辆旧车在冷天启动时，经常会发出很大的爆裂声，就像引擎点火不顺，放炮一样。vehiclesoundmachinetechnicalChat with AIVocabulary GamePractice Reading
verb🔗Share事与愿违，适得其反。 To fail in a manner that brings down further misfortune."His attempt to make money by importing luxury cars backfired horribly when fuel prices tripled."他试图通过进口豪车赚钱，结果油价暴涨三倍，这事彻底事与愿违，适得其反。outcomeactionnegativeeventChat with AIVocabulary GamePractice Reading
