If the rhyme occurs within a line, it is called internal rhyme.

在一行的中间出现叫中间韵；

External quality and internal rhyme all blend into one harmonious whole. , fashion natural elements and elegant design.

外在的质地与内在的气韵浑然一体，时尚自然的元素融合典雅设计。

The sound form of poetry is often manifested in onomatopoeia, sound symbolism and some other musical devices such as alliteration, assonance, repetition, internal rhyme and so on.

声韵形式通常表现在拟声、语音联觉以及其他一些音乐手法诸如头韵、谐内韵、重复和行内韵等；

Type A is the result of internal initial and rhyme coordination on phonetics level, while type B comes into being for phonological and systematic reasons.

B类音变是由音系结构系统性的要求引发的，属音系学层面的音变。