Put it at the close of a short apology edit, right after the moment the mistake lands, then follow it with the sad violin before the scene cuts to the next clip.
关于此声音
This 4.6-second clip centres on the Portuguese phrase 'me desculpa', delivered as a short vocal line credited to Aqua, with a warm, slightly sheepish tone that makes a small apology feel light rather than heavy. It suits a sorry between friends, landing as playful and conciliatory instead of formal.