In addition, the two-part allegorical saying is a special language form created by the working people in China in their life practice, and it is a short, funny and vivid sentence. Two-part allegorical saying consists of two parts: the former part plays the role of "introduction", like a riddle; The latter part plays the role of "back lining", like a riddle. In a certain language environment, it is usually said that the first half, "rest" to the second half, you can understand and guess its original intention.