conserve的名词：conservation

n.(对自然环境的)保护;(官方对历史或艺术建筑的)保护;文物保护;防止流失(或浪费、损害、毁坏);保持;保护

复数： conservations

例句：

My father's life work was devoted to the conservation of the Longleat estate.

我父亲一生致力于保护朗利特庄园。

Conservation is an issue which gets a lot of attention these days — whether it means preserving old buildings, or protecting the environment.

资源保护是目前备受关注的问题——不管它指的是对古建筑的保护，还是对环境的保护。