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Railway signal
01
sinal ferroviário, sinal de trem
a sign or light beside a railway track that tells the train driver when to stop, go, or slow down
Exemplos
The passengers were relieved when the railway signal finally changed to allow the train to move again.
Os passageiros ficaram aliviados quando o sinal ferroviário finalmente mudou para permitir que o trem se movesse novamente.



























