With the increase of population and the expansion of the production scale of human beings, the issue of environmental security has drawn more and more concern of the society.

随着人口的增长和人类生产规模的扩大，环境安全问题已经引起了人们越来越多的关注。

youdao

With the increase of population and the expansion of the production scale of human beings, the issue of environmental security has drawn more and more concern of the society.

随着人口的增长和人类生产规模的扩大，环境安全问题已经引起了人们越来越多的关注。

youdao