backfire /ˈbækˌfajɚ/ verb backfires; backfired; backfiring
backfires; backfired; backfiring
Learner's definition of BACKFIRE
[no object]
1
of an engine or vehicle : to make a loud sound when fuel is not burned properly（发动机或车辆）回火，逆火 2
: to have the opposite result of what was desired or expected事与愿违；适得其反
— backfire
noun, plural backfires [count]