It was a beautiful autumn morning, and we went to Yunyan labor education practice base by bus.

The scenery along the way is beautiful. Soon, we arrived at the practice base. At this point, it began to rain, and it soon ended, as if it were a joke with us. The activities are very rich, and the most impressive thing is stepping on the keel waterwheel. When I saw the teacher step on it, I was filled with joy and felt great. But when it's our turn to play, our bodies can't coordinate, which seems to be a lack of tacit understanding. Then, I gradually became an insider, treading water with a water truck. But it didn't last long. The faster we step on it, the easier it is for me to slide off it, and my calf feels a pain. I was so scared that I quickly got down from above.

Seeing other students scrambling, I felt I couldn't give up and went up again. Although I learned from the first experience this time, it is still the same. I didn't make any progress and fell down again. I rolled up my pants and found that my calf was red for several pieces, which was very uncomfortable. In this way, I reluctantly left the waterwheel that made people happy and sad.

On the way back to school, I suddenly understood how wise the ancients were. Every summer, the fields dry up, so farmers water the fields with treadmills. At that time, when I stepped on it, I never realized the kind of suffering of farmers, and I always felt that it was a kind of enjoyment. But when I savored it carefully, I felt their fatigue and bitterness. We should cherish the beautiful life now, study hard and apply science and technology to build a more advanced and more