backfire
🇺🇸
/ˌbækˈfaɪər/
🇬🇧
/ˌbækˈfaɪə(r)/
When a plan or action has a result that is worse than expected, it backfires.
The surprise party I organized for my friend backfired when they found out before the event.
我為朋友組織的驚喜派對在他們活動前發現時適得其反。
When something makes a loud noise like an explosion, it backfires.
The car's engine backfired, causing everyone to jump.
汽車的引擎發生了回火,使每個人都跳了起來。