他们大半是青年人。

Most of them are young.

《新英汉大辞典》

青年人应该渴望知识，因为他们正年轻。

Young man should be thirsty for knowledge because they are in their prime.

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提供第二次机会，可以帮助青年人重建他们的未来，这样做对于整个社会具有长期的有益作用。

Second chances help young people rebuild their future, which has a long-term beneficial effect on society as a whole.

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We should be approaching young people, encouraging them to engage, cross our religious boundaries and engage constructively with the same sort of sense of purpose that al-Qaeda recruits young people with a destructive divisive ideology.

我们应该靠近青年人，鼓励他们参与这项事业，跨越宗教界线,鼓励他们具有建设性地参与其中,带着与基地组织招募拥有破坏性的,分裂的意识形态的青年人时有的目的感。

普林斯顿公开课 - 人性课程节选