2, b, d, h, k, l, f, t, these pinyin are written in the top and middle boxes.
3, G, P, Q, Y, these pinyin are written in the middle and bottom two boxes.
4, I, ü, write in the middle box, and add the points above Pinyin to the top box.
5, J, write the middle and bottom two boxes, and write the points on the table.
Facing a grid. Chinese Pinyin is a tool to assist Chinese pronunciation. Article 18 of the General Language and Characters Law of People's Republic of China (PRC) stipulates: "The Chinese Pinyin Scheme is a unified standard for spelling Roman letters in Chinese names, place names and Chinese documents, and it is used in areas where Chinese characters are inconvenient or unusable." The symbols written according to this set of norms are called Chinese Pinyin.