Usages of por causa de
Na assembleia, a oposição criticou o governo por causa da crise económica.
At the assembly, the opposition criticised the government because of the economic crisis.
Hoje estou nervoso por causa de um exame.
Today I am nervous because of an exam.
Houve um cancelamento do voo por causa do nevoeiro, mas a companhia ofereceu reembolso.
There was a flight cancellation because of the fog, but the airline offered a refund.
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