conservation词性名词，它的动词是 conserve

conservation释义之一 conservation is saving and protecting the environment. (对环境的)保护

例子 a four-nation regional meeting on elephant conservation 一次有关大象保护的4国区域性会议

conserve 作动词 释义 if you conserve a supply of something, you use it carefully so that it lasts for a long time. 节省

例句 The factories have closed for the weekend to conserve energy. 这些工厂在那个周末关了厂以节省能源。