Composition: "Twenty years later, I returned to my alma mater", 300 words.

Go back to my alma mater after 20 years.

In 2033, I was the president of Galaxy Hi-Tech Company. My company produced various high-tech products, such as superconducting intelligent robots, super fantasy computers, enhanced energy-saving processors, remote-controlled transformers and so on. Our products involve many high-tech development fields. Since I became the president of the company in recent years, I have been busy with my work and have never been back to my alma mater Yongjing Primary School. Today is Teacher's Day on September 10, 2033. I gave myself a day off, and I was going to fly back to Earth from Mars headquarters in a "ftl" to visit my alma mater and teachers.

An hour later, I arrived at my alma mater. I just wanted to walk into the campus excitedly, but I was stopped by two robots. Two robots said, "Sir, please stop. You can't go in. " As soon as I saw it, it turned out to be superconducting intelligent robots produced by our company, and they were equipped with a doorman intelligent system. I quickly took out my smart ID file card and explained, "I used to be a student in this school. Today I came back to see my alma mater and teachers." Two robots quickly checked my smart ID card with a laser scanner, and then let me in.

The once dusty playground has turned into a fairyland on earth like Penglai, and the green and transparent artificial lake flashes subtle and far-reaching light waves; By the lake, the grass is flourishing, colorful flowers are in full bloom, and the 50-story intelligent teaching building is towering into the sky ... Just as I was intoxicated with this beautiful scenery, a beautiful melody woke me up.