打扫 ｜ Cleaning
提前铺好一块正方形的面粉，随即用吸尘器吸走其中一部分的面粉，然后在这块面粉的旁边倒出来吸尘器里吸走的面粉原本的部分和形状。
Lay out a square piece of flour ahead of time then pass over it with a vacuum cleaner to suck up a portion of the strips, then pour out the original portion and shape of the sucked up pieces next to this piece of flour.