air-raid siren
常见例句
- The air-raid siren screamed through the whole town.
空袭警报在整个城镇中尖叫。
http://dj.iciba.com - 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。 - It is planned to last 639 years and residents living near the church have gotten used to the monotonous tone sounding like an air-raid siren.
教堂附近的居民已习惯这种类似空袭警报的单一音调。
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