The initial, rhyme and tone in a syllable must belong to the same time level.
2
拼音由声母、韵母和音调组成。
Phonrtics consists of initials, finals and tones.
3
益阳方言的古全浊声母根据声调、声母、韵母进行不同层级的演变,演变按照清化和弱化两种模式进行。
Through the processes of devoicing and weakening, these initials evolve respectively in the places and the ways of pronunciation in terms of the tones, initials and finals.