the windmill has been in existence for a long time . A WINDMILL HAS SAILS or blades to collect wind erenge.it looks .. a huge fan with complex stuctures to.. use of the erenge

Here is a rewritten version of the text in proper English: "The windmill has been in existence for a long time. A windmill has sails or blades to collect wind energy. It looks like a huge fan with complex structures to harness the energy." Let me know if you need further assistance!