求翻译：这只小黄狗在我家已经有三四年了，从几个月时就来到我家，现在它正在脱毛，只有背上有些没掉，看样子很丑，但又有些有趣。是什么意思？

The little yellow dog in my house there are three or four years, from a few months when it came to my house, now it is hair removal only back, some did not fall, it looks like very ugly, but also some interesting.