What is portrait and landscape orientation

The left-right direction is understood to be the horizontal direction, and the up-down direction is the vertical direction. Horizontal comparison method refers to the method of comparing different objects of the same kind under a unified standard. Vertical comparison refers to the comparison of a thing's history, current situation, and even the future. By comparing certain things at different stages of history, we can understand the law of the movement of things themselves, see the stages and trends of the development of things, better understand the past and grasp the future, and prevent the fragmentation of history. In the field of sociology, through the social phenomena in different time and space conditions recurring **** the same pattern of comparison.