2, drinking water safety, you and I participate, health protection for everyone.

It is very important to ensure the supply of food and safe drinking water and try to restore good sanitary conditions.

4. Water, the source of life; Water is the foundation of health.

5. Experiments show that the filter can produce safe drinking water.

6. Soft rain can penetrate hard marble.

7, drinking water hygiene-a little love around.

You won't know the value of water until the well is dry.

9, saving water, benefit in the contemporary, work in the future.

Water can wash everything.

1 1. Of all the things in nature, water is the most precious.

12, WHO drinking water standard is the lowest threshold for drinking water safety.

13. Pay attention to drinking water hygiene and enjoy a healthy life.

14. Water drops wear stones not because of the strength of water drops, but because of water drops.

15, water is the first of all things.

16, building a conservation-oriented society, taking the road of circular economy, saving water is glorious and wasting water is shameful.