"Shoe pulling face" and "pig kidney face" have a disease name in orthodontics, which is called malocclusion. (Pinyin he= bite, you can type but don't display it) What happened to his deformity? Not only refers to tooth dislocation, but also refers to various deformities caused by the imbalance of craniofacial relationship. There are many classifications, among which Edward H. Angle put forward angle classification in 1899, which can be divided into three categories. Among them, this "shoehorn" and "pig kidney" belong to the third category of angles. To put it bluntly, the chin is longer than the upper jaw and the face is "flat". This "ping" is also divided into many points. Over the years, the soul painter Ash Zhi Zhi painted a "shoehorn" and a "pig kidney". In fact, this is a typical way to shake the bag and turn it over. As long as the size is right, there is no problem with any accent. Why is the face of a shoehorn not as good as the face of a pig's waist? Suddenly feel very cute. From the perspective of a more real child, it is very specific. But if this package reminds the audience of the difference between the two in this picture and extends to the actual face difference, the audience will be unhappy: it will take a long time to think about the next one. In fact, the similarities between a shoehorn and a pig's waist are unsightly, one is related to the foot (shoehorn) and the other is the kidney (kidney). Actually, we can think about it. These two sounds even more unsightly than they are actually a kidney, because shoes are just a little dirty and ugly, and kidneys are easily associated with sex. In addition, even if the two metaphors are equally unbearable, they are also applicable to this structure, because as long as the two metaphors are not good-looking and the degree gap is not obvious, the rhythm of shaking the bag is correct, and the ordinary audience will not pay attention to which one is more unbearable. To sum up, the question of why pig kidney is not as good as shoehorn is of little significance and has nothing to do with northeast dialect.