The relationship between son-in-law and father-in-law can be written as Weng Xu. The relationship in the family belongs to Weng Xu relationship, that is, father-in-law and son-in-law, father-in-law and son-in-law are "Weng Xu relationship", so some people call son-in-law and mother-in-law "gu Xu relationship". Son-in-law: son-in-law, also known as son, son-in-law, half-man, half-son, turtle son-in-law. Mother-in-law: mother, also known as mother, mother-in-law, mother-in-law, Taishui, mother, mother, mother.