But it is the fourth group that underscores the relevance of generational issues in the Arab world. Even when combined, the first three generations make up barely one-third of the entire Arab population.
但是阿拉伯世界世代问题的重要性在于第四代人。前三代人加起来也不过占整个阿拉伯人口的三分之一。近60%的阿拉伯人都不到20岁，30岁以下的约有70%。