1, which means: "Hao Han" means vast, and the water potential is huge, which means vast and numerous. "Vast" is often used to describe the vastness of water potential, as well as the vastness of the ocean and a large number of things.
2. Usage: "Hao Han" is used to describe countless meanings, such as "network information in Hao Han" and "people in Hao Han". "Vast" is often used to describe natural scenery such as water and ocean, such as "boundless sea" and "boundless river".