That seemed clear enough, but things got tricky when the nonwhite ancestor was a grandparent or a great-grandparent and the minority blood became increasingly diluted.
这看来够清楚了吧，但当非白人祖先是祖辈或曾祖辈，少数种族血统越来越稀释时，情况又变得微妙起来。
2
The family structure of the Chinese type is more complicated, the traditional of happy family is all family lives together including grandparent and great-grandparent .
中国式的家庭结构比较复杂，传统的幸福家庭是四代同堂。
3
The so-called "blood-fraction" laws of 1705 ruled that anyone who was at least 1/8 black — which meant one black greatgrandparent — could not be labeled white.