Lawn introduction: Generally, tourists visiting Stanford University will enter the main entrance along University Avenue, admire the tall palm trees on both sides, park on both sides of a vast grassy square, and then walk into the campus. You are not allowed to drive on campus, you can only walk or ride bicycles. I wonder if this rule is a continuation of Jane Stanford's rule that banned cars from driving on campus. The campus is full of green trees, flowers and lawns, and the faint smell of grass floats in the breath of spring, which is very refreshing. Birds chirped crisply, sometimes landing on the ground to look for food, and they did not panic when they saw pedestrians. I see cute little squirrels on campus from time to time, poking their heads and running around. They are very cute. Under the blue sky and white clouds, the Stanford University campus looks particularly beautiful.