Place it right after the mistake is revealed in your edit, following Sudden Suspense to set up the reveal, then follow it with No No Wait Wait before moving on to the next scene.
关于此声音
This 2.6-second spoken reaction repeats a dismayed 'oh no' before landing on the line that something is completely wrong. The voice sounds panicked and exasperated, like someone watching a bad decision unfold in real time. It feels awkward and funny at once, turning a small disaster into a moment everyone recognises instantly.