????????"???"????? ???? ?"???"??"???"????????????????? ?????????? ?????? ?????????????????????? ?????????"?????????"?three?way pattern of race differences?????????????????? ???????????"?????????"???????????????? ???????????????? Synopsis: The ethnic status in the United States is much more complicated than "patina clothing". I think it is more appropriate to use "blend cloth" than "patina clothing". Because black people have white blood, white people also have black blood, and as for Hispanics, it is even more mixed race. But the "three-way pattern of race differences" shown by modern anthropology still plays a key role until the process of mixing is complete. And as a black author, this brief history lacks a neutral academic foundation by failing to use the latest research data on the "three-way pattern of race differences" to account for the state of race in the United States.