It sounds like an air raid siren.
这听起来像是空袭警报。
The very sound of an air-raid siren is enough to give my mother the horrors.
那空袭特有的声音就绝对就足够给我母亲这种种的恐惧。
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，除了哈里斯堡诡异的气氛外，空袭警报声一直传到首都。
Then suddenly one day when the air raid siren was sounded the professor rushed to the air raid shelter his neighbours from the building.
然而有一天当空袭警报突然响起的时候，教授随着他的邻居一起迅速从大楼冲向空袭防空洞。
We were told to stay in the basement when the air-raid drill siren was on.
人家告诉我们防空演习警报响的时候，要待在地下室。
We were told to stay in the basement when the air-raid drill siren was on.
人家告诉我们防空演习警报响的时候，要待在地下室。
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