People should cherish life and don't let nature get sick.
It is easy to destroy pollution once, but it is difficult to recover it in ten years.
Green mountains and green waters, the source of life, generations of children, full of blessings.
Protecting the environment and the earth means protecting human beings.
Pay attention to hygiene, civilization and public morality. Please don't litter.
It is glorious to talk about hygiene, but shameful to talk about hygiene.
Take good care of public property, pay attention to hygiene, protect the environment and observe order.
Hygienic habits are cultivated from childhood, and noble morality is mastered from childhood.
Cleaning is more important than cleaning.
Hygiene, starting with me.
To protect the environment, start with me and establish environmental awareness from an early age.
Sustainable development, national plan, future generations and future generations are all utilitarian.
Environmental protection behavior is everywhere, civilized and clean, and everyone insists.
Everything in the world, rational use, cherish life, ecological balance.
Environmental morality is established by everyone.