if you want to be safe in life, you should have five essentials: first, clean the air; Second, we must clarify drinking water; Third, it is necessary to circulate ditches; Fourth, we must sweep the house; Fifth, there should be plenty of sunshine.-Florence Nightingale

A beautiful environment is the basis for all talents, all beautiful things and all beautiful homeland.

The last drop of water of mankind will be the tears of regret after environmental destruction.

for the sake of this generation and future generations, we must protect the environment.

There is only one earth. Without it, where can we find our home?

to maintain the ecological balance of the earth is to protect human beings.

everyone should protect the environment, otherwise people will die.

a happy life lies not only in adequate food and clothing, but also in clear water and blue sky.