This trip was great! A 400-word essay

I remember last summer, my aunt and uncle and I went to Beijing for a trip. We came because of the Quanjude Roast Duck in Beijing. When I saw it, hehe, there were quite a lot of people there.

My place is crowded with people, and everyone comes here because of its reputation. It’s finally our turn. Through the glass window of the kitchen, I see the process of the masters roasting ducks. I also know that every roast duck is carefully prepared. A dedicated chef slices the duck into thin slices in front of the guests. As the saying goes: "If you don't visit the Great Wall, you are not a true man, and it would be a pity if you don't eat roast duck." In fact, the way to eat it is very particular. First, put the baked lotus leaf cake with chives, minced garlic and sweet noodle sauce, and then put the shaved duck on top. The meat slices are rolled and eaten. It is really delicious and delicious.

On the second day after arriving in Beijing, I couldn’t wait to ask to go to the Great Wall first, and everyone responded positively. The weather was particularly beautiful that day. The summer in Beijing was originally very hot, but that day was indeed cloudy and the weather was cool. We arrived at the foot of the Great Wall before nine o'clock in the morning. Because it was early, there were not many people there yet. We bought the tickets and started climbing into the city.

I jumped up to the city wall. I don’t know if it was because I was used to climbing the Great Wall in Luodai, so climbing the real Great Wall was not as tiring as I thought. I even felt a little relaxed. I climbed to the first beacon tower effortlessly. I found that the wall of the Great Wall is higher in the north and lower in the south, and every other section on the north side has a small square hole with no seal on it.

I asked my aunt what was going on. My aunt was about to answer, but my uncle asked me to think about it. I thought about it and said, the Great Wall is used to resist the invasion of cavalry from the north. The reason why the north side is high and the south side is low is because the north side is used for defense, so it is built high while the south side is built low. On the one hand, it can To save stone materials, on the other hand, because the south side is connected to the rear, it needs to constantly replenish food and grass. Look, aunt, there are stairs going down to the city wall. My aunt replied happily: "Absolutely correct". The uncle then asked, what are these small holes on the north side for? I thought for a while and couldn't answer, so my aunt reminded me, if we were to fight, would we need to use some weapons or stones? So what do you think these small holes could be used for? "I understand. These small holes are used for shooting arrows and throwing stones, and they can also be used to protect yourself from being shot by enemies," I replied happily. "Yes, that's the truth."

Looking at this great project, I was thoughtful. The people at that time were really amazing. Such a project was built with people's hands at a time when there were no construction tools. .

In the next few days, I went to the Science and Technology Museum, where I saw a lot of strange things, such as soft magnets that can attract people of the same sex; and airflow that can shoot baskets. I also went to the planetarium and explored the mysterious universe. I went to the Forbidden City, the Summer Palace, Beihai, the Olympic Village, etc., and went to the Peking University and Tsinghua University that I longed for. I thought I would come here to study one day...

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