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As is known to all,dogs are people's best friends,they can be our cute pet too,so many people like them very much.The little dogs are very lovely.Some people just have dogs for pleasure,and they even build house for their dogs.For example.Some dogs are trained to catch bandits,some are able to guard our home.And if you are police,the dogs can be very helpful in many fields,because they have acute sense of smell.Moreover,if you walk the dogs outdoors at night,you will not feel afraid.Some dogs also do different linds of work.Dogs are used to keep watch.They tell people when dangeris coming.Some dogs are used to keep people safe.They are also used to move animals like sheep or goats.Some dogs are used for different kinds of hunting and some dogs help the police.
