根据已有的英文短文，生成一个中文翻译。
This is a story about a boy and his dog. The boy loved his dog very much and they did everything together. One day, the dog went missing and the boy was heartbroken. He searched everywhere for his dog and finally found him at the animal shelter. The boy was overjoyed to be reunited with his beloved pet.
这是一个关于一个男孩和他的狗的故事。男孩非常爱他的狗，他们一起做所有的事情。但有一天，狗狗不见了，男孩非常伤心。他到处寻找他的狗，最终在动物收容所找到了它。男孩非常高兴能够与他心爱的宠物重逢。