1. economize on water; save on water 节约用水

2. Conservation of water is of great importance. 节约用水非常重要。

3. We must economize on water. 我们必须节约用水。

4. The government is appealing to everyone to save water. 政府号召大家节约用水。

5. Please economize the water, thanks for cooperation! 请节约用水谢谢合作!

6. Saving water is to cherish life. 节约用水就是珍惜生命。

7. The power enterprises shall economize on water. 电力企业应当节约用水。

8. Everyone has the accountability to save water and to propagate the concept of treasuring water. 每个人都有责任节约用水，并宣传节约用水。

9. We have to economize on water during the dry season 我们在旱季不得不节约用水

10. We must conserve water during the drought. 干旱期间我们必须节约用水。