environment degeneration

• 环境恶化

environment degeneration的用法和样例：

例句

1. They issued a pamphlet concerning the worsening environment.
   他们出了一本有关环境恶化的小册子。
2. Population dilatation, resource absence and environment deterioration are three main questions in the world.
   人口膨胀，资源短缺，环境恶化是当今世界面临的三大问题。