Write two strokes of the first letter d in the four-line grid, first in the left semicircle, occupying the middle grid, then in the vertical grid, occupying the upper grid and the middle grid, and the written d occupies the upper grid and the middle grid of the four-line grid.

Pinyin is the process of pinyin festival, that is, according to the rules of syllable formation in Putonghua, the initials and finals are quickly and continuously spelled and combined with tones to form a syllable.

Hanyu Pinyin is People's Republic of China (PRC)'s Latin Chinese character scheme, which was studied and formulated by the Hanyu Pinyin Scheme Committee of the former China Language Reform Committee (now the State Language Commission) during the period of 65438 to 1955.

This pinyin scheme is mainly used to mark the pronunciation of Putonghua and Chinese as the phonetic symbol of Chinese characters. The Fifth Session of the First National People's Congress of People's Republic of China (PRC) approved and announced the plan on February 1958+0 1. 1982 has become the international standard of Chinese Roman alphabet spelling in ISO7098.

Some overseas Chinese areas, such as Singapore, use Chinese Pinyin in Chinese teaching. In September, 2008, Taiwan Province Province of China decided to change the policy of Chinese Pinyin translation from universal Pinyin to Chinese Pinyin, and all parts related to Chinese-English translation will require the use of Chinese Pinyin, which will be implemented from 2009. 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.

Scheme history:

At the beginning of the 20th century, the main transliteration system of Chinese was the Romanization of wade-giles, which was founded by the Englishman wade in the middle of19th century. This system is a romanization system for spelling Mandarin Chinese.

As early as 1906, Zhu's Jiangsu New Alphabet, 1908, Liu Mengyang's China Phonetic Alphabet, 1926, the national Roman characters and 193 1 Latin neologisms, China ethnic intellectuals designed Chinese phonetic notation with Latin letters. The Latin scheme of all these Chinese characters provides the basis for the formulation of Chinese Pinyin.