1. During his sojourn in Africa he learned much about native customs.
    他在寄居非洲期间，学得了许多当地的风俗。

2. A color map of the world's genetic variation has Africa at one end of the range and Australia at the other.
    人类基因变异彩图表明非洲与澳洲分别位于变化范围的两端。

3. Africa is a very large continent — larger than China, Europe and the United States put together.
    非洲大陆幅员辽阔，比中国、欧洲和美国的总和还大。

4. Preventing one case of AIDS means preventing many future cases, while preventing a case of measles(麻疹) or malaria(疟疾) in Africa would have little effect on its spreading, since those diseases are already common in many countries.
    预防一例艾滋病意味着为以后减少许多例艾滋病。而在非洲，预防一例麻疹或疟疾病对于防止疾病的蔓延起不了多大作用，因为这些疾病在许多国家已经是常见病。

5. “In Africa, an eighteen-year-old woman might need a job because she had a baby before marriage and has only a casual relationship with the father, or she might have a husband who goes on to another marriage and supports the children of that union.”
    "在非洲，18岁的女子就可能需要一份工作，因为她还未结婚就生了孩子，而她与孩子的父亲只有一种若即若离的关系，或者她的丈夫可能另外结婚，需要负担婚内生的孩子。"

6. Guess-translating, he said one meant beobab tree, which is very common in West Africa, and another might be Mandinka for cow.
    猜着翻译，他说一个词的意思是beobab树，这种树在西非很常见，另外一个可能是母牛的曼丁哥语。

7. Central Africa, the most tropical portion of this tropical continent, is a land of heavy rainfall and high plateaus.
    中部非洲是这块热带大陆上最热的地区，雨量充沛，地势很高，

8. Only a small canal separates Africa from Asia.
    把亚洲和非洲分隔开来的不过是一条不大的运河，

9. 40 percent of Africa is desert country.
    非洲百分之四十的地区位于沙漠地带，

10. One cannot think of Africa without thinking of Egypt, the cradle of an ancient civilization, nor of Egypt without the Nile.
    想到非洲，人们不能不想到作为古代文明发祥地之一的埃及。同样，想到埃及，不能不想到尼罗河，