Poor as a dog is a phenomenon that people say is as tired as a dog. However, now that living conditions are better, dogs are not as poor as before, so poor as a dog is just a joke. As family pets, dogs are one of man’s best friends. They accompany us through lonely times and bring us joy and warmth. Dogs' loyalty and enthusiasm make them guardians and protectors of the family.

In addition to being family pets, dogs also play an important role in many fields. For example, police dogs can help the police track criminals and search for missing persons; guide dogs can help blind people walk; search and rescue dogs can search and rescue trapped people at disaster sites; therapy dogs can bring comfort and warmth to hospitals, schools and other places. The outstanding performance of dogs not only shows their intelligence, but also wins people's respect and love.