v.（内燃机等）发生逆火( backfire的现在分词 )；发生回火；（枪炮）向后爆发；发生意外 英英释义： backfire[ 'bæk,faiə ]n.the backward escape of gases and unburned gunpowder after a gun is fired同义词：blowbacka loud noise made by the explosion of fuel in the manifold or exhaust of an internal combusti