What is the couplet of horizontal and vertical cooperation?

The writing is good, but if you don't say it, it's a bit like talking about calligraphy. Add a horizontal criticism and others will know. Let me give you a backchat: the pillars of the country are super stylish and more and more comfortable, and the horses and horses gallop across the battlefield to compete for beauty. Horizontal criticism: the pillar of the country, it is better to change the level and level, the more exquisite the shape, the more handy the iron horse. ...