Chen is a dragon, and has the meaning of enlightenment and longevity. It is more auspicious, and the relationship is mild. Xu represents a dog, which contains Cindy and Xiangke, which is fierce and usually considered unlucky. Judging from the image represented by Xu, Xu represents slaughterhouse, battlefield, crematorium, arsenal, prison, temple, hell and so on. For dogs, for guards, the word "prison" is "a word from two dog". Two German shepherd dogs keep a close eye on people, don't talk casually, and lose their freedom.