And when the fires began emergency sirens that were created to warn people, to seek shelter and evacuate from the flames. They didn't sound.
当火灾发生时，用来警告人们寻找避难所，并从火焰中撤离的紧急警报器并没有响起。
Emergency siren
原声例句
CNN 10 学生英语 2023年8月合集
CNN 10 学生英语 2023年8月合集
The state is now going to launch a formal review to try to figure out why the emergency sirens were not activated, especially because they were created for these types of circumstances.
该州现在将启动正式审查，试图找出紧急警报器没有启动的原因，特别是因为它们就是为这种情况而创建的。
英语百科
Civil defense siren
![There are 8,200 alarm sirens for civil protection throughout Switzerland. They are tested once a year, on the first Wednesday in February.[1] Sound sample](/uploads/202501/11/Picswiss_BL-56-085039.jpg)
A civil defense siren (also known as an air-raid siren or tornado siren) is a siren used to provide emergency population warning of approaching danger and sometimes to indicate when the danger has passed. Some (that are mostly located in small towns) are also used to call the volunteer fire department to go fight a fire. Initially designed to warn of air raids in World War II, they were adapted to warn of nuclear attack and of natural destructive weather patterns such as tornadoes. The generalized nature of the siren led to many of them being replaced with more specialized warnings, such as the Emergency Alert System.
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