tractor-trailer
US /ˈtræk.tərˌtreɪ.lər/
UK /ˈtræk.tərˌtreɪ.lər/

1.
caminhão-trator, carreta
a truck that consists of a tractor and a trailer, used for hauling freight
:
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The tractor-trailer was loaded with goods for delivery.
O caminhão-trator estava carregado com mercadorias para entrega.
•
A large tractor-trailer blocked the highway.
Um grande caminhão-trator bloqueou a rodovia.