A city can not only look at the prosperity on the surface, the cleanliness of the sewage channels, but also the respect and love for the earth.

An electric car sped by, splashing water that stained the trouser legs of passers-by, "How did you drive?" Passers-by stamped their feet with umbrellas.

"How?" Cover the sewer and sewer lids with small balls and climb down the stairs.

"What are you doing with me in the sewers on a rainy day?" The ball climbed to the bottom of the stairs and turned around......

It's not the kind of black stinky gutter with garbage floating in front of you, the rainy day on the surface is gloomy, and the gutter is a completely different scene.

The sewage treatment system filters, disinfects and purifies the city's domestic sewage, and then pours it on the plants in the sewer, where the flowers bloom all year round, and the entire sewer wall is covered with flowers and vines.

There's no extra water on the ground, "I thought I'd have to soak in dirty water." Xiaoqiu shivered at the thought of soaking in dirty water in the winter and the possibility of coming into contact with all kinds of bacteria and viruses.

The cat boss at the base plans to renovate the city's sewers one by one, and as for the air and water pollution caused by the factory, it will also be improved through the next measures.

All the work here is carried out by the little mouse, the mouse and the cat are natural enemies, but here they can live in harmony, "there are no eternal friends, there are no eternal enemies, only eternal interests." "The rats are operating the sewage purifier and watching the mice.

Relying on a job in sewage treatment, the little mouse feeds the family.

Some of the rats are pruning the flowers and vines, and they have become accustomed to the clammy and cold environment, and they are not used to becoming bright and warm all of a sudden.

It is worth mentioning that these rats have a unique color, not gray nor white, all of them are light purple.

"Mainly because mom Ball likes purple." The rice cake cat threatens everyone to dye it purple.

"Actually, when I see a gray mouse, I'm ......hungry," the rice cake cat showed a fierce look, looking like a natural predator.

The ball gives everyone a piece of cheese bigger than a mouse.

"We've got bigger!" The purple rats went in with the balls, and in the sewers, there was only clear water on either side, and there were small fish swimming around, and maybe in the spring, you could hear the frogs chirping.

The ground is covered with a layer of lawn, which is soft and comfortable to step on.

As we walked, the road ahead became wider, and in the distance, a huge cheese was seen.

"This cheese is the heart of the wastewater treatment system. Every day, we treat as much sewage as we get, and we get cheese. "The diligent purple rats swirl around the cheese.

In the past, rats could only hide in dark places to find food, because of infectious diseases, and terrible growth, they were expelled by humans, and they could only live in dirty and damp sewers, but this was also no choice.

Now it's different, they can dominate the sewers in the open, and they can go to the sea as a group during the monthly holidays.

There are TVs and small couches in the sewers, where the rats rest after work.

Advertisements for rat poison and cockroach poison were being shown on TV.

"Why are there all these advertisements in the middle of winter?" The rats were terrified to watch.

"Where did this color TV come from?" Xiaoqiu looked at the twenty-one-inch old-fashioned color TV and felt very nostalgic.

"When I was harvesting the rags, I fished them back with a machine." The side job of the rats is to go around collecting some bad things for humans.

Rats visit their storage room to the balls.

As soon as the door opened, a pile of things fell down, seemingly unwanted by the humans.