在发达国家，老年人(年龄80以上)是增长最快的人口群体。

In the developed world, the very old (age 80 +) is the fastest growing population group.

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流动人口是易于受伤害，合法权益难以保障的特殊人口群体。

Floating population is a special vulnerable group whose legal rights are difficult to guarantee.

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随着时间的推移，一些人口群体接受素食，由于古代印度哲学阿含沙区。

Over time, some segments of the population embraced vegetarianism, due to ancient Hindu philosophy of ahimsa.

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When they thought it was necessary, they maintained peace by destroying communities and forcibly moving populations.

一旦他们觉得有必要，就会为了维护和平，毁灭其他群体,强制迁移人口。

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