Place it as the final beat of a checkout or handover scene, after a Bell Ding Sound Effect Button for the register moment. Follow it with nothing else in that scene so the goodbye closes the edit before you cut to the next clip.
关于此声音
The clip is a 2.4-second spoken line that says the words thank you come again in a bright service-counter delivery. It feels cheerful and a little cheeky, turning a routine goodbye into a playful send-off that works as a friendly dismissal rather than a formal farewell.