因此，有很多分支语言学如音韵学，形态学，句法等。

Therefore, there are a number of branches of linguistics such as phonology, morphology, syntax, etc.

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正是由于颜之推等人的努力，音韵学在这一时期成熟起来，并成为以后1000多年中国传统语言学的主流之一。

This made phonology become mature and become one of the main stream of Chinese linguistics in latter 1000 year.

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