不可数名词：

1.保存； 保护； 避免损失、浪费、破坏、损坏等

2.对自然环境的保护

词形变化

形容词conservational

名称conservationist

英语解释

the preservation and careful management of the environment and of natural resources

(physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations

an occurrence of improvement by virtue of preventing loss or injury or other change