What does the future ocean look like in your mind? Combine the content of the text, collect relevant information and write a short essay. 300 words -600 words.

In the future, there will be a second home for mankind-an underwater city that makes full use of marine resources.

In order to resist the great pressure of seawater, this underwater world was built in a huge coral colony. Through a long corridor, you can enter this huge coral community. Many huge round water polo balls have been built here. This is a house where human beings live. Humans immigrated here from land.

The climate in the underwater world is very similar to that on land. You must ask, how can you live without sunshine and water on the seabed? You don't have to worry, there are two huge machines in the deepest part of the underwater world, one is the sunlight processor and the other is the well-known seawater desalination device. This solar processor is directly connected to the ground, absorbs the sunlight from the ground, and then transmits it to the solar cell at the bottom of each water polo through the pipeline, and then converts it into electric energy and transmits it to the energy lamp at the top of the water polo. The seawater desalinator directly absorbs seawater, desalinates seawater, and then sends it to the water polo.

Underwater world is an environmentally friendly world. In order to protect the environment, cars, motorcycles and other vehicles that pollute the environment have been eliminated and replaced by well-trained dolphins. Because the living space has been broadened, there are no high-rise buildings here, only rows of energy-saving bungalows.

Behind the huge water polo, there are some small green water polo. A closer look shows that there are lush trees and flowers in it, and only small animals can shuttle through them and play happily.

Although the construction of the underwater world will be very difficult, I firmly believe that as long as we exert our intelligence and dexterous hands, staying in the underwater city will never be a dream in the near future.