Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This impact on human society has given them the nickname "man's best friend" in the world. In some cultures, however, dogs are a source of meat。
狗在人类社会中扮演很多角色，如狩猎，放牧，运载货物，守卫，协助警察和部队，人类之友，还有近年来对残疾人的帮助。这些对人类社会的影响使得他们在世界上有了个绰号“人类的好朋友”。然而，在一些地方的文化中，狗也是肉的来源之一。
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024