练声曲一种练习、曲子或排练，歌手在进行过程中演唱视唱法音节或其它一些无意义的元音，而非演唱歌曲。

An exercise, a composition, or an arrangement in which a performer sings sol - FA syllables or other meaningless vocal sounds rather than a text.

youdao

关于零声母，本论文的假设：当音节以非高元音起首时，音节首音位置为空；

As for the conventionally defined zero-onset, the assumption in this thesis is that when the syllable begins with a non-high vowel, the onset position is empty;

youdao

关于零声母，本论文的假设：当音节以非高元音起首时，音节首音位置为空；

As for the conventionally defined zero-onset, the assumption in this thesis is that when the syllable begins with a non-high vowel, the onset position is empty;

youdao