An exercise, a composition, or an arrangement in which a performer sings sol - FA syllables or other meaningless vocal sounds rather than a text.
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。
From composition to writing the practice and exercise of composition and the progress of psychological integration and formation are wrapped in it.
素质是人的知识和能力内化为人的一种品格。从作文到写作，既是作文实践历练的过程，又是写作心理品质构建与完形的历程。
From composition to writing the practice and exercise of composition and the progress of psychological integration and formation are wrapped in it.
素质是人的知识和能力内化为人的一种品格。从作文到写作，既是作文实践历练的过程，又是写作心理品质构建与完形的历程。
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