Chinese Pinyin alphabet, the overall recognition syllable of Chinese Pinyin generally refers to the syllable whose pronunciation is still the same as that of the initial after adding a vowel (or the pronunciation is still the same as that of the initial after adding a vowel), that is, the syllable that can be recognized directly without spelling, so the overall recognition syllable should be read out directly.

The overall recognition syllables of Chinese Pinyin include: zhi, chi, shi, ri, zi, ci, si, yi, wu, yu, ye, yue, yin, yun, yuan and ying, totaling 16.
The overall recognition of syllables can be divided into two categories: flat tongue sound and warped tongue sound. There are three flat tongues: z, c and s; There are four tongue sounds: zh, ch, sh and r.