buffet car
US /ˈbʌf.eɪ kɑːr/
UK /ˈbʌf.eɪ kɑːr/

1.
vagão-restaurante, carro-restaurante
a railway carriage equipped for serving refreshments
:
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We decided to head to the buffet car for some coffee and snacks.
Decidimos ir para o vagão-restaurante para tomar café e lanches.
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The train has a dedicated buffet car for passengers.
O trem tem um vagão-restaurante dedicado aos passageiros.