Put it at the peak of a reveal, after Sudden Suspense has built the tension and just before the punchline lands, then follow it with Oh My God Wow for a second, smaller reaction that keeps the joke going without repeating the same beat.
关于此声音
This is a single voice stretching out an 'oh my God' into a long, rising exclamation that lasts about four and a half seconds, with the middle vowel held and dragged for comic effect. It feels like pure shocked disbelief, the kind of over-the-top amazement that turns a surprising reveal into a joke, and it works because the delivery stays earnest while going completely overboard.