Third is the broadcast announcement , which is often used in public places such as a station, airdrome, etc. , and is often used when an emergency happens.

三是广播式通知，这类通知多用于一些公共场所如车站、机场等，一般是当紧事件出现的时候使用。

youdao

Third is the broadcast announcement , which is often used in public places such as a station, airdrome, etc. , and is often used when an emergency happens.

三是广播式通知，这类通知多用于一些公共场所如车站、机场等，一般是当紧事件出现的时候使用。

youdao