面对最近数十年来的所有成就，真实的情况一直是：世界上20%的人口仍然仅靠每天不足1美元的收入生活，同时艾滋病和其他传染病在许多国家肆虐。
For all the successes of recent decades, the fact remains that 20% of the world's population still lives on less than $1 a day, while HIV/AIDS and other communicable diseases are ravaging many societies.