9、让河水更清澈，让家园更美好。

Make the river clearer and the home better.

10、看到绿色，我们才会有好心情！

See green, we will have a good mood!

11、用汗水美化青山，用爱心缔造家园。

Beautify the green hills with sweat and build their homes with love.

12、不要旁观，请加入行动者的行列。

Don't stand by. Please join the ranks of actors.

13、改善民生，共享水利发展成果。

Improve people's livelihood and share the achievements of water resources development.

14、那里有绿色，哪里就有生命。

Where there is green, there is life.

15、美好环境需要我们共同建设。

We need to build a better environment together.

16、建立绿色校园，从你我做起。

Build a green campus, starting with you and me.

17、生命只有一次，地球只有一个。

There is only one life and only one earth.

18、愿君莫伸折枝手，鲜花亦自有泪滴。

May you not bend your hand, and the flowers have their own tears.

19、鲜花还需绿叶扶，学校更需同学护。

Flowers need to be supported by green leaves, and schools need to be protected by their classmates.

20、请别乱坎树林，让空气更加清新。

Please don't disturb the woods and make the air cleaner.

21、从自己做起，爱护我们的家园。