Place it in the middle of an edit, right after the SpongeBob Fail sting and before the next spoken line, then cut to a reaction shot and let the scene continue.
关于此声音
This is a three-second synthesizer sound with a deliberately awkward musical phrase that leaves a conversation feeling stalled. It gives listeners an uneasy, second-hand embarrassment feeling, the kind that follows a remark nobody knows how to answer. It is a short cue for awkward pauses and social missteps.