关于狗的英语文章

　　狗是一种平常的犬齿动物，是狼的近亲。它寿命差不多xx年—最多30年。

　　dogs usually refers to the dogs, also known as dogs, a common canine mammals, is a close relative of the wolf. often referred to as human best friend is also the highest rate of keeping pets. his life was about ten - more than three decades, in the absence of an accident, the average life span of small dogs to be longer.

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