Place it at the opening of a chaotic street or emergency edit to establish the scene, then follow it with a vine boom when the punchline lands to underline the sudden turn.
关于此声音
This is a ten-second recording of an ambulance siren as heard in Italy, with its rising and falling two-tone wail cutting through street noise. It feels urgent and tense, instantly signalling an emergency vehicle approaching. The siren's distinct European tone sets it apart from the sharper wail used in many other countries.