表格的公式计算法怎么操作

简介：The whole world was completely white, and nothing could be seen. The rain was pouring down wildly on the sports ground, canteen, playground, main teaching building, and on the streets under the shade trees. The sewers were blocked by dry leaves. The rainwater that cannot be drained overflows, overflows the sidewalk, and is diverted to the direction of waterlogging.