1. On one occasion, when Cavalli-Sforza was taking blood samples from children in a rural region of Africa, he was confronted by an angry farmer waving an axe.
    有一次在非洲乡下，正当卡瓦里-斯福尔扎要从儿童身上采血时，一个愤怒的农人手执斧头出现在他面前。

2. Is he a farmer?
    他是农民吗？

3. For the grave farmer he used his dentist, a sour-looking man. For the woman standing alongside him, the artist chose his sister, Nan.
    为画神色严肃的农夫，他选择了他那表情木讷的牙医，至于站在他身边的农妇，他选择了自己的姐姐南。