1. A large truck consisting of a tractor unit (cab) attached to a detachable cargo trailer, commonly used for long-distance freight transport
The semi-truck drove across the country delivering goods.
O caminhão articulado viajou pelo país entregando mercadorias.
2. A commercial vehicle combination used in road transport for hauling cargo over highways
Many semi-trucks stop at truck stops for fuel and rest.
Muitos caminhões articulados param em postos de parada para combustível e descanso.