Timid dogs can be trained. The owner needs to find out the reasons. Some are due to nature, and some are due to psychological shadows caused by acquired stimulation. Help the cat overcome them one by one according to the specific situation. First, you can pet the dog's head. Enhance feelings and reduce vigilance. Secondly, take the dog out more often so that the dog can slowly adapt to the surrounding environment. If the dog behaves well, it can be rewarded with snacks, thereby increasing the dog's enthusiasm.