conservation of both moisture and soil

例句：

1. 2. 节约；节省；节约使用
   资源
2. 1. The government is working hard to protect the environment.
   政府正在努力保护环境。
3. 2. The scientist conducted a study on the conservation of endangered species.
   科学家对濒危物种的保护进行了研究。
4. 3.Conserving water is essential for the survival of our planet.
   保护水资源对于地球的生存至关重要。