1, dou Fang, the writing content is usually four to six lines.
2. It is a style of China's painting and calligraphy. If you cut four feet of rice paper into three parts, it is called four feet and three cuts.
3. Contrast paintings are called "word pairs" or "couplets". Two screens of equal size are hung in pairs.
4. Couplets, two opposite banners, are written with upper and lower couplets respectively, also called couplets, pairs or couplets.