Place it at the turning point of a short edit, just after the agreement is shown on screen, then follow it with No No Wait Wait to keep the back-and-forth going before the scene moves on.
关于此声音
This short voice clip has someone saying yes twice and then no twice, in a quick back-and-forth that sounds like a decision being made and immediately undone. It feels playful and indecisive, with a comic wobble that makes a sudden change of mind land as a joke rather than a serious refusal.