今天是班级每月一次的大扫除日,小豆丁和胖墩被安排到教室的后面整理图书阅读架。“咳咳……我说这一个月没打扫,灰尘还挺多的……咳咳……”胖墩被书架上的灰尘呛得直咳嗽。“是啊,你看这些放在书架最上面的书,估计很久都没人动过了,上面积了一层灰。”小豆丁赤脚踩在椅子上,从书架顶层拿出一 Today is a monthly clean-up day for classes, with small butterscotch and fat pie arranged to the rear of the classroom to organize the reading shelf. “Cough ... I said that this month did not clean, dusty Tingduo ... ... Keke cough ... ...” Fat pier was choking cough on the shelves. “Yeah, you see these books on the top shelf, it is estimated that a long time no one moved, the area covered with a layer of ash. ” Small beanie barefoot in the chair, take out a