而匮乏的主要诱因是水及食物短缺、人口结构变化和国家政策的失败。

The main problems of scarcity are water and food shortages, demographic change and state failure.

youdao

而匮乏的主要诱因是水及食物短缺、人口结构变化和国家政策的失败。

The main problems of scarcity are water and food shortages, demographic change and state failure.

youdao