Nephew refers to the brother's son, so if this child is the son of the aunt's brother, then he is the aunt's nephew. In this case, the child should call his aunt. Nephew refers to sister's son, which means that if the child is the son of aunt and sister, then he is aunt's nephew. In this case, the child should call menstruation to menstruate.
It should be noted that the appellation in family relations varies from region to region and family habits. Some places may be confused with nephews, and there may be some special names. However, in most parts of China, the above address is generally accepted. In family relations, nephew and nephew are two different names, corresponding to different kinship.
Family name
Menstruation (some places are called grandmothers, mothers, aunts, aunts, menstruation): mother's sister.
Auntie (called "Auntie, Auntie, Auntie" in some places): Grandpa during menstruation.
Uncle (called uncle, uncle, aunt in some places): mother's brother.
Aunt (called uncle, aunt and aunt in some places): uncle's grandmother.
Aunt (called grandma, girl, aunt, aunt): Dad's sister.
Aunt (called uncle in some places): My aunt's grandfather.
Uncle (called Grandpa, Dad, Dad, Uncle, Uncle): Dad's brother.
Aunt (called uncle, aunt, uncle, aunt in some places): my uncle's grandmother.
Cousin: Daughter of aunt and uncle.
Cousin: The son of an uncle or aunt.