The so-called "blood-fraction" laws of 1705 ruled that anyone who was at least 1/8 black — which meant one black great grandparent — could not be labeled white.
1705年所谓的“血统分数”法律规定，任何人只要有1/8的黑人血统——即有一位黑人曾祖辈——就不能认作白人。
Random Numbers appeared on a touch screen. After a fraction of a second, the Numbers were masked by white squares.
数字随机的出现在触摸屏上，转眼间，上面的数字被白色的方块遮盖。
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