回火：过早点燃的燃料的爆炸或内燃机中未燃的废气的爆炸。
Backfire: an explosion of prematurely ignited fuel or of unburned exhaust gases in an internal-combustion engine.
过早点燃的燃料的爆炸或内燃机中未燃的废气的爆炸。
An explosion of prematurely ignited fuel or of unburned exhaust gases in an internal-combustion engine.
在调查结果出来之前不要过早表态、就爆炸原因发表看法。
Don"t jump the gun by making a statement about what caused the explosion before the investigation is completed."
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