Place it at the very end of a failed attempt, after the action has stopped and the reaction shot is on screen. Open the sequence with Dun Dun Dun to build suspense, then follow the mishap with SpongeBob Fail for a second beat before this clip closes the scene.
关于此声音
This 4.3-second clip is a brass horn playing a slow, descending wah-wah phrase, each note drooping lower than the last. It lands with a wry, deflating feeling, turning a small failure into a joke without a word of dialogue. The sound is instantly recognisable as the classic cue for an awkward flop, a missed shot or a plan that quietly falls apart.