模仿文本：  One man though who is cautiously optimistic is the UN's former secretary general, now a leading development campaigner, Kofi Annan. He says that Africa is losing a staggering amount in tax revenue. Some estimates say as much as $60 billion a year. And he says that tackling this problem alone could help transform the fortunes of the world's poorest continent.

 

译文： 但是有一个人却持审慎乐观的态度，他就是联合国前秘书长，现在是主要的发展倡议者，科菲·安南。他说非洲正不断损失大量的税收。据评估每年损失约达600亿美元。他认为只要解决这个问题，世界最贫困大陆就能够转运。