If someone falls or injuries, pass by the first reaction is broadcastcall alarm.
假如发现有人摔倒或受伤，路过者第一反响是播打电话报警。
2
To put all this into perspective, Apple has put forth what they call their HTTP Live Streaming specs, which dictates how the quality of video that can be broadcast over a cellular 3G network.
Today's radio concept is "Break from the regular form of broadcast". They will be calling many and unspecified listeners who sent SMS, without any notice call from scenarists.