名詞 blowback:

1. the backward escape of gases and unburned gunpowder after a gun is fired
   同義詞：backfire
2. misinformation resulting from the recirculation into the source country of disinformation previously planted abroad by that country's intelligence service

blow.back

n.（名詞）
The backpressure in an internal-combustion engine or a boiler.
后壓力：內(nèi)燃機(jī)或鍋爐中向后的壓力
Powder residue that is released upon automatic ejection of a spent cartridge or shell from a firearm.
后焰：火器射擊時(shí)，殘留彈殼的自動(dòng)彈射所釋放的殘余粉末
The effect caused by recirculation into the source country of disinformation previously planted abroad by that country`s intelligence service in an effort to mislead the government of another country.
情報(bào)回傳：由一國的諜報(bào)組織為誤導(dǎo)他國政府而在國外散布的假情報(bào)，意想不到地又傳回本國的現(xiàn)象