北美洲也有它的世界冠军，其中包括狗科、驼科和马科动物——可以说他们是人类的好朋友。
But North America too has given the world its champions, including the dog, camel, and horse families-arguably man's best friends.
我喜欢狗，因为它们是人类的好朋友。
我喜欢狗，因为它们是人类的好朋友。
但是在西方国家，人们认为狗是最忠诚的而且是人类的好朋友。
Btu in western countries where dogs are considered honest and good friends of humans.
我想是的。狗可以让我们的房子更安全。它们真的很有用。它们是人类的好朋友。
Marry -I think so. Dogs can make our houses safer. They are really very useful. They are people's best friends.
我想是的。狗可以让我们的房子更安全。它们真的很有用。它们是人类的好朋友。
Marry -I think so. Dogs can make our houses safer. They are really very useful. They are people's best friends.
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