问题描述：
英语翻译
They can guard the house ang keep the family form danger.
Look,the dog can help blind people cross the road.
The police dogs can help the police catch thieves.
My grandma even keeps a dog as a pet.She never feels llonely,because she has a lovely partner with her!
They can guard the house ang keep the family form danger.
Look,the dog can help blind people cross the road.
The police dogs can help the police catch thieves.
My grandma even keeps a dog as a pet.She never feels llonely,because she has a lovely partner with her!
问题解答：
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