blue-light
verb [ T ] UK informal uk/ˌbluːˈlaɪt/ us/ˈbluːˌlaɪt/
用（蓝光闪烁的）急救车紧急送医
to take someone to a hospital in an emergency vehicle using blue flashing lights
Patients with a suspected stroke should be blue-lighted to the nearest hospital. 疑似中风的病人应该急救送入最近的医院。