air siren

基本解释

On the back seat the thing in the basket began to cry; the air raid siren wail of the newly born. High.
車後座上那個籃子裡的東西開始哭起來；就像是宣佈新生命誕生的那種空襲警報：古老，高亢，無意義。
As a token of our sadness for the sufferings bore by the disaster zone people, we stood in the shape of a heart. At 2:28pm, air siren and car horns filled the city.
這次活動在學校的鋻主廣場擧行，爲了表達我們對災區人民的哀思，我們站成心型，在2點28分整，汽車鳴聲，防空警報頓時全城響起。
treasure.1x1y.com.cn
Adding to the surreal atmosphere in Harrisburg that day was the sounding of an air raid siren that rang out through the capital city.
那天，除了哈裡斯堡詭異的氣氛外，空襲警報聲一直傳到首都。

In which case a recording of an air raid siren would do it.
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