Place it at the absolute end of an edit, after the last line of dialogue or final reaction beat. Pair it with a soft pop effect earlier for button presses in the scene, then let this clip close the sequence with nothing scheduled after it in the timeline.
关于此声音
This is a very short voice clip of the German phrase Gute Nacht, spoken as a simple good night. The delivery feels calm and final, like a gentle closing line rather than a joke, giving listeners a sleepy, settled feeling that works as a quiet sign-off at the end of a conversation.