An ambulance dashed to the scene of the accident.
The light was red but the ambulance drove straight through.
If he gets any worse, we must phone for an ambulance.
The injured man was fairly far gone by the time the ambulance arrived.
By the time the ambulance had arrived, a crowd of onlookers had gathered.
The ambulance reached the collapsed building in due time.
An ambulance officer brought a stretcher for the injured woman.
An ambulance was racing along with its sirens wailing.
He was taken by ambulance to the nearest hospital.
2. 野战医院, 流动医院