Why does Orwell refer to the presence of the dog as 'dreadful '?

Orwell refers to the presence of the dog as 'dreadful' because it symbolizes the oppressive and terrifying nature of the totalitarian regime in the novel. The dog is a tool of the Thought Police, used to instill fear and control over the citizens of Oceania. Its presence serves as a constant reminder of the government's power and ability to punish those who go against its rules. The dog represents the constant surveillance and threat of punishment that hangs over the characters in the novel, creating a sense of dread and paranoia.