What are syllables and how many classifications are there?

A syllable is the smallest phonetic unit of a single vowel phoneme and consonant phoneme in a language, and a single vowel phoneme can also form its own syllable. Chinese syllables are phonetic units composed of initials and finals, and a single vowel can also be a syllable. For non-tonal language, such as English, Spanish, Russian, etc. The main body of pronunciation is syllable. For tonal languages, such as Chinese and Thai, there are tones in addition to syllables, and syllables plus tones are pronunciation.

Chinese syllables can be divided into four types: two pinyin stanzas, three pinyin stanzas, fully recognized syllables and self-contained syllables.

English syllables can be divided into seven types: closed syllables, open syllables, vowels+consonants+silent E, vowel combination syllables, vowels +r, diphthongs syllables/polyphonic syllables and consonants +le syllables.