Because the school has just started, the classroom will inevitably be in a mess. No, no sooner had the book been distributed than Mr. Cao gave the order to clean it up.
In the afternoon, the students came to the "battlefield" (classroom) with rifles (brooms) and "bullet belts" (washing powder) and started the first "battle" since the beginning of school. As soon as we entered the battlefield, we carefully found that there were "mines" all over the ground (black spots left by chewing gum stuck to the ground and trampled again and again), so we had to dig them out one by one with a knife. Finally, the mine was cleared and we found that the glass was "unrecognizable". We wet the rag, "climb" the window in three steps like "Spider-Man", and then wipe it hard again and again. Although layers of dust fall into the cloth mouth, there are still some dark yellow spots that are still "resisting" Scraping with a knife, afraid of scratching; Wipe it with a rag. It won't fall off yet. This will get us pregnant. Or teacher Yang came to the battlefield with a laser cannon (high-pressure water pipe), opened the "safety" (sluice) and blew a gun at the glass. The spots on the glass suddenly faded a lot, and our army also "struck while the iron was hot" and wiped out all the "enemies" on the glass in one fell swoop. We only need the "enemy" on the ground. We launched a "powder attack", scattered washing powder all over the dark places on the ground, and then erected a "heavy machine gun (mop)", so the enemies on the ground could only "flinch".
After cleaning all afternoon, it is finally over. Looking at the brand-new classroom, the students will smile.