大约85%的死亡为儿童，且大都发生在非洲。
Approximately 85% of these deaths are among children, and most occur in Africa.
故事发生在非洲。
为什么现代人类从原始非洲向其他地区的迁移发生在约5000年前？
Why did modern humanity expand past Africa about 50,000 years ago?
非洲书面文学的大量产生发生在20世纪。
A large number of African written literatures have occurred in the 20th century.
非洲书面文学的大量产生发生在20世纪。
A large number of African written literatures have occurred in the 20th century.
应用推荐