On Friday, our class cleaned up for the first time. Some of the students brush the commons, some brush the floor under their feet, and others brush the corridors and tiles.
My assignment was to brush my desk and the floor under my feet. I'll ask my deskmate to carry a bucket of water first. Then I pour the washing powder on the table and the floor. Then I dipped a little water in the brush to brush up the dirt. The floor was dirty. I squatted down and tried to brush with the force of nine oxen and two tigers. After a while, I felt pain in my back and legs, but I persisted.
In this way, I finally polished the floor, and I was exhausted. After this cleaning, I know that it is not easy to clean up.