Rescue the poor dog that had its legs cut off. Now he is so happy to run again

It was raining hard, the poor wounded dog was lying on the side of the road. Some kind villagers brought umbrellas to cover the rain and food for him. The dog's two legs were severed, one leg was rotten and swollen with worms. He was so scared and nervous that the poor dog lost all faith in humans. Why are humans so cruel?, How the poor dog could bear so much pain.
To save him, doctors had to amputate his legs. We called him Shanxin, and we had to slowly approach Shanxin to try to regain his trust.
Shanxin did not give up. He fought hard to save his life. Having two legs didn't slow him down at all.