Many people like to raise a pet to company them. Especially as there are more only child, so keeping a pet can fill the blank space of a sibling. Dogs are most people’s choice, for they are said to be the loyal friends. In the movies, dogs are described as human being’s trustful friends and they will never abandon their masters. In the famous and touching movie Hachi, a homeless dog named Hachi is raised by a professor. The dog waits for his master to go home after work at the train station every day. Someday, the professor has a heart attack while he is having class and he dies. Hachi never sees his master appear in the train station, but he still goes to the place to wait for his master until the end of his life. Everybody is moved by the loyal dog, his story still goes on. 
许多人喜欢养宠物来陪伴自己。尤其是随着越来越多的独生子女,因此养宠物可以填补没有兄弟姐妹的空白。养狗是大多数人的选择,因为他们是忠实的朋友。在电影中,狗被描述为人类值得信任的朋友,他们永远不会放弃他们的主人。在著名和感人的电影《八公》中,一条无家可归的狗叫八公，被一位教授收养。这只狗每天都在火车站等待主人工作后回家。有一天,教授在上课的时候心脏病发作去世。八公再也没有看到他的主人出现在火车站,但他仍然去那个地方等待他的主人,直到他生命的终结。每个人都被这条忠诚的狗感动,他的故事仍在流传。