alarm reaction

基本解释

If someone falls or injuries, pass by the first reaction is broadcast call 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。
Dana Gioia, the NEA’s outgoing chairman, thinks the reason for the turnaround is the public reaction to earlier reports which had sounded the alarm.
国家人文基金会即将离任的主席Dana Gioia认为，出现逆转的原因在于公众对于早期警钟一般的报告的反应。
When the danger alarm is turned on, it produces a physiological response called the " fight or flight" reaction, which helps us to fight the danger or flee it.
一旦危险警报预警，就会产生生理反应，称为“迎击或退避”反应，它能帮助我们抗击危险或逃离危险。