first responder

美 [?f?rst r??spɑnd?r]

英 [?f??(r)st r??sp?nd?(r)]

复数：first responders

权威英汉双解

first-responder

1.	第一反应人员（指接受过培训在紧急情况下首先到达现场施行基本救治的人，如警察或消防队员）a person such as a member of the police or fire department in a position to arrive first at an emergency, who has been trained to give basic medical treatment