Place it at the transition just before a destination or a missed-stop reveal, then follow a wrong-bus moment with the SpongeBob Fail Sound and keep the Dun Dun Dun Sound for the delayed realisation that follows.
关于此声音
This clip is a short, clear bus bell ding lasting about two seconds, the kind of bright chime pressed to ask a driver to stop. It feels familiar and mildly urgent, like a small signal cutting through a noisy ride without sounding harsh. It works as a quick cue because the tone is simple, recognisable and easy to place in a moment.