单语范例（未经PONS编辑处理）
Horses were used for reconnaissance and for carrying messengers, as well as pulling artillery, ambulances, and supply wagons.
en.wikipedia.org He had a bout of intestinal bleeding that led to him being taken to the hospital in an ambulance.
en.wikipedia.org He worked as a paramedic on an ambulance for seven years and then for another seven years on an oil platform.
en.wikipedia.org Paramedics gave him an injection, and he recovered enough to walk to the ambulance.
en.wikipedia.org Later the runway was used to serve air ambulances.
en.wikipedia.org